If I could give legit 100% serious advice to straight cis dudes:
-If you're able, get therapy. Normalize talking & examining your thoughts & feelings.
-If you feel weird being vulnerable around u'r crew get a new crew. They're not tryna make the life changes you are.
-Is what you're feeling really Anger? Or is it Isolation, is it Abandonment, is it Insecurity, is it Hopelessness? What's the most effective strategy to de-escalate the zenith of those emotions/thoughts?
-Normalize being challenged.