How to Handle Therapy Bias: Losing Hope in Therapy

How do you handle therapy bias? I’ve had multiple times when therapy actually makes my situation worse because I’ve taken the advice of my therapist despite them not fully understanding the situation. I communicate everything I can but they can still only understand so much. I recently had a new friend that was told by her therapist that she never should have let someone with BPD into her life, and now resents me even though nothing between us has even happened. I’ve lost hope in therapy. It hasn’t been helping me and now this is making me even more resistant to going back. Does anyone else experience this?