If you can’t face your new self how can you recover from mental illness?

I have learnt that one of the important things with regards to my recovery from borderline personality disorder and bipolar is to accept that the reality I once faced when I was many years younger is no longer the case and that I have to accept myself for who I am and although I argue I am a lot more than my mental illnesses they are a part of who I am and I have to face my new self in order to recover.

I have to accept that I can be shitty with people because of my issues and make bad decisions and work from there to try and be a better person.