Dealing with PsA, or any other types of arthritis, is a scary & frustrating beast. Persistence is so important when it comes to your medical wellbeing. It took me years to get properly diagnosed with Osteoarthritis (in my late 30s) & then another year or so with the PsA (in my early 50s).
Another tip, remain positive, which I know is super hard at times. I look at it as a challenge & try to figure out how to do things, not give in to 100% defeat. Of course once things start to get a bit better with treatment(s), tasks will become easier. There are times you'll find one day you are on top of the world & then the next day barely stepping on to the curb. Just have to roll with it & press on. There are days when there's a definite hitch in my get along, which makes my very physical job a challenge. I do know eventually my work situation will change, but for now I am able to tackle it positively, take my prescribed meds, take care of myself, & check in with this forum for sometimes much needed advice.
I wish you all the best & try not to get too overwhelmed by it all.