I used to think I was autistic...psychiatrist says not but probably BPD. Tried therapy but didn't work out and no longer involved with it

However, I really want to try and make my life better. I have suffered with this shit for 40 years. Hardly have any friends. Get stressed out by little things. Dont enjoy life - feel angry and stressed a lot by stuff that shouldn't annoy me as much as it does. The negative karma gets picked up by everyone and then its self perpetuating. I pick up that they don't like me and that makes me even more introverted and unhappy.

Anyone with BPD got advice of how to deal with this fucking thing?

Thanks