I feel embarrassed— venting

I feel embarrassed that it’s been such a battle trying to shake this bad habit. I’ve been using since I was like 11 and I’m 20 now. I’ve wanted to quit for over a year and while I’ve made noticeable progress I still relapse pretty frequently. I don’t know exactly why I’m typing this out but I relapsed again a couple hours ago and I feel regretful about it. If anyone who’s had more long term success has any advice I’m always open to hearing it. I feel like I’m wasting my potential, damaging my view of myself, and damaging my relationships with others and God. I know I have it in me to do better, I’m sorry I haven’t done so yet. Spare me a prayer brothers and sisters I’m not gonna give up but I got a long road ahead of me.