"How will others forgive me and support me through trying to change my life for the better? And how can I make my peace with this? Because I can't forgive myself and I can't see a way out. Every day is filled with this feeling of worthlessness and self hatred."
This will all take time. Staying sober is the only thing you can do right now and with that they will gradually take you seriously and trust will be re-built. You have to believe that you can do this and that you deserve sobriety. The past is the past, now you need to build your future.