New here and need some advice

Hi, I'm new here with likely diagnosis of psoriasis, and also suffer with health & generalised anxiety so am freaking out at bit right now, and in need of some knowledge. First I'd like to share my backstory... I'm currently in mid 30's, and looking back and thinking over my past, I'm now potentially putting 2+2 together… I have been to the doctors on a handful of occasions since my late teens or early twenties with some skin complaints. Back then I used to get scaly dry skin in my ears, I never knew and dont entirely know for sure what that is/was, the doctor just gave me some cream at the time (this has been 95% cleared up for years now). But in addition to this I've certainly had the odd small single patch or two of red dry skin often on my ankles that will have been no bigger than maybe the size of a pea - these would come and go occasionally and seem to always clear by themselves so never bothered me. Last year I got a pink scaly patch that appeared on my shin and become larger, more predominant over a few weeks. This got to about the size of a 10p coin - |I dont recall noticing anything quite like this before, and I ended up going to the doctors thinking it was a maybe a fungal thing. Here's a picture: https://ibb.co/bBPvSTn I was referred to a dermatologist who didn't give me a diagnosis of anything and prescribed me two different creams to try to clear it, I think one was a fungal cream the other a steroid of some sort - which ever one worked it seemed to do the job and two weeks later it was pretty much gone. A couple of months later another one of these things appears on my other shin - I used the cream I had before - and it went away again after a few weeks - so again I didn't think much of it. I do also get a bit of pink/reddish patches and dry skin around the elbows at times. Looking at pictures of the skin patch in question now and comparing to pictures on the internet it looks like psoriasis to me, but it surprises me that I could have gone through both a GP and dermatologist without them both taking one look and saying "that's Psoriasis" - which makes me question things and causes further confusion. As an aside I also get a scaly dry scalp which affects my face around my beard (been told Seborrheic dermatitis) and get kilaris pilaris on my upper arms, because of the dermatitis and a spot on my back that didn't seem to be going away, I went back to a different dermatologist last year and I showed him the picture and he took one look and said "looks like you've also got a spot of psoriasis as well my dear man", very nonchalantly. Now this second dermatologist I will add didn't give me much confidence in general, as I felt he barely took any time to look at anything, for example he glanced at the spot I mentioned from his chair about 1.5 meters away for all of about 2 seconds and said it was a cutaneous horn and froze it off - I'm not certain about that or how he could have such good eye sight to make that judgement from that distance but who am I to question… When he mentioned psoriasis also and he didn't say anything, not knowing better I had assumed it was just another skin condition to add to the list, was a cosmetic thing only, and since I'd only had a few small patches coming and going nothing to worry about… Fast forward to this year and I've been having a lot of physical symptoms ranging from some episodes of feeling the need to urinate after having already gone, chest tightness (likely due to my high anxiety/stress which I've suffered with for years), arms and legs feeling a bit jelly like, burning/tingling sensation of the skin in may hand and in particular between my shoulder blades, some stomach tenderness (put down to IBS), and a lot of back stiffness in my lower back (usually triggered if I lay on a harder fat surface on my back or front for a period of time - it feels like it sort of stiffens locks up and takes me a minute to get up, and then quickly dissipates) often in the right flank in early hours of the morning or lower back, and weird pin point spots around my body that if I pressed on would feel tender or bruised. I've been on a journey for the past 8 weeks in seeing doctors, urologist, spinal surgeon and now a Rheumatologist and had abdominal MRIs (for urologist) and back MRIs last week (spinal surgeon and rheumatologist) and find out next week when I follow up. I know a lot of the above could be put down to anxiety or different things... Anyway so fast forward now to last week and the Rheumatologist asked me if I had psoriasis. I actually said I'm not sure, and recalled that I think the dermatologist last year had mentioned it, and I found it an odd question at the time. So when I got home I Googled it, and since learned its an auto-immune condition, and now understand why he was asking. I then read on the internet that psoriasis can limit life expectancy, and have since spent hours on Google getting further more anxious. I've read such conflicting information, everything from Psoriasis and Psoriatic Arthritis may lower average life expectancy by a few years, right down to one article which stated that those diagnosed under 25 have a life expectancy of just 60 and one that said those with earlier diagnosis could have life expectancies shortened my as much as 25-30 years! - If I have psoriasis (which is what the last dermatologist said he was fairly sure it was) then I now realise I've probably had it albeit very minor in its skin presence since my early twenties and now I'm freaking out about it all, quite confused what to believe or think. I'm assuming I do indeed have psoriasis, given the odd patches I've had and the elbows and comparing pictures online. I appreciate that my story may be minor compared to so many others experiences, and do not wish to scare monger or be inconsiderate of others, but would appreciate input and knowledge from this community from those who are well educated and know far more about this condition and the prognosis and outlook, especially for someone like me in their mid 30's, if psoriasis is causing my physical issues and I have spondyloarthropathy/arthritis starting up? I have a young child and another on the way its crushing to think I may not be able to have a full life or that I may be genetically passing something along :(