First of all conratulations at having turned a corner and being firmly on the sober path. I’m happy for you.
That’s a great question. I have struggled with self confidence and self esteem and worth all my life (as so many do) and still do. I’m 3 1/3 years sober and been in psychotherapy this entire time as well. The only thing I can tell you is: it’s a process. Don’t stop learning about yourself. But stay receptive and inquisitive. Your journey has only just begun and youll get the chance to really know yourself, the person you already are, if you stay sober. That’ll give you the chance to learn to accept yourself. That takes time. And with that ofc also comes the chances to work on yourself and chance things about you you want to grow out of. None of this happens over night or without the quiet companionship of your own reflection and self-observation. Start a journal. Start therapy if you can.
Do not fall into the traps and pressures of toxic positivity with messages like: love yourself! Be proud! Translate: be what you desire to be now and immediately. That’s not how it works and don’t let anyone tell you it is. (except me ofc haha 
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Take your time friend. And be on this journey with yourself. You have come far from a dark place and you have much further to go. That’s good news.
I wish you all the best!
PS: check those out: Mental health memes and discussion (Part 1)