Generalized anxiety disorder as well as death anxiety (Thanatophobia)

Only the first one affects my game play. I worry a lot about my performances and it takes me a long time to get comfortable on more depending roles (Mostly Tank).
I have a hard time making friends due to my excess of worrying; what they think of me, what to say in a conversation etc.
To this day I haven't made any friends in FFXIV because I'm just too shy to start a conversation and worry I'll bother people.

The second anxiety can give me some real panic and it occasionally leaves me unable to play, or do much else for that matter.