Well, angst and anxiety are not neccessarily one and the same. I dunno man, you're young, just enjoy yourself. Depersonalization can be a side effect of anxiety. So can moodiness.
In addition there is your other thread on the same subject. Why don't you just be yourself, pal around and we will tell you whether you are likeable of not. Then you can get a better picture of what is wrong or right with you.
So far you appear to be young and eager to belong. You fit well with a bright future. I like that about you.
For the record, BPD type II is fast-cycling. However, between this and another thread, I gave you my opinion. You didn't like it too much, though