Is it possible to be disciplined while having ADHD?

I am trying to get my life together, it seems i always self sabotage relationships, work, my own life goals just to have this shut down preventing me from living the life I want. It prevents me from pursuing the girl i like, and i give up/quit so easily when things start getting hard. I feel like discipline is all I need to push ahead, but when it comes down to put in the work, i always shut down and can't seem to push myself to do it. I hate it, its been months to years now where it feels like I am frozen and just watch as the seasons pass me by and my goals keep getting further and further away, only for me to just settle for the things that are convenient at the time, knowing that i am not happy, i wont be happy, and i will always have this hole in my soul that reminds me of how much of a failure i am for giving up on my dreams.