How do I stop being intimidated without spending $60/hour?

I am a 54 year old female. After years of “therapy” and psych meds for Bipolar 1, I still get intimidated and flustered and cannot quite function at the task at hand. Doesn’t matter, either male or female. If I feel the slightest bit that I am being bullied, I shrink.

It is like I have no “something” but don’t know what or how to fix it.

Therapy has helped my self esteem, but apparently not enough.

Please help!