Struggling to quit I began drinking during covid to aid my boredom

I’m currently a 23 year old female. I have pretty severe adhd and BPD. During covid the isolation and boredom got to me in ways I can’t even explain. It quite literally mad me go crazy. I started drinking to numb my boredom at first then it became a coping mechanism for my BPD. I eventually got treatment for my mental health but the drink had never gone away. I feel like I have to drink to be happy and upbeat. I struggle with the my emotions when i’m sober and drinking feels like a break away from all that. I feel like i’m so stuck and can’t feel happy without drinking. Any advice? I’m too young to go down this path and I know something needs to change but it seems so impossible. Any help would be very appreciated.