I need an outside viewpoint, my current peer group is lacking, but I don’t feel high functioning enough to “get out there”?

I will talk to my doctors, but in the meantime I need clarification on where I stand. I can’t communicate with people I meet from programs for emotional/thought disorders. I get so frustrated when I hold my anger inside because they would get defensive if I got mad, and when I try to understand the conversation goes nowhere. I’ve a habit of not trusting myself; also I don’t express anger very well. I’m socialized that I can get along, but don’t put myself out there ‘because the reality is everyone already has lives. Is this a normal life stage to be in between?