I can relate to everything everyone is saying. I've had p since I was about 8 and I'm nearly 45(august) I went through a stage when I was younger would never wear short sleeves, but my legs weren't to bad so I could wear shorts,skirts etc.
My p has never been really bad but I hate it on my arms, I was free from on my arms for years when I turned 40 it seemed to flare up(not as bad as some peoples) but to me I was very self concious of it. I would never go swimming unless I had to when my kids small I would sometimes go in the pool with them but most times my husband took them in. I always thought I was missing out.
When I'm on holiday I don't worry so much nowadays I will wear bikinis etc, and I've seen quite a few other people with p and other skin conditions. The 1st day is always the worst, but I think to myself why shouldn't I do what I want to. I always think people might think its catching. It really is mind over matter, and it is hard but you only get one life so try and make the most of it.