Unequally yoked relationships

Hi, this is my first ever Reddit post but I am looking for advice on what to do. My boyfriend and I (both 19) are firm believers of Christ but sadly both lukewarm in different ways. We have been dating for a little over a year now. In this past year I have definitely progressed in my faith a lot more than he has. I read my Bible almost daily and have been turning to God a lot more (have been pretty wonky with going to church but this is something I am working on). My boyfriend and I lost our virginities to each other and started having sex a few weeks into dating. I have always felt extremely guilty about this bc I grew up thinking I’d wait until marriage my entire life. However he assures me we are going to get married when we are older anyways.

We have both always known this is something we shouldn’t be doing, and even when we’d have conversations about it and try stopping, we would never last more than a week.

Lately I have been taking my relationship with God more serious than ever and prioritizing not falling into temptation (avoiding excessive drinking, gossiping, and being lustful). Despite my bf “claiming” to do the same, it doesn’t feel like he is putting in as much effort as I am. Last night we were really close to falling into sexual sin, but I had to stop us. He apologized to me for initiating things, and I confronted him on how I feel as though he isn’t trying hard enough to resist temptation. He told me he really wants us to stop having sex and he does want to grow closer to God, but it is hard for him to prioritize doing so when his mental health is so bad and he has a million other things going on in his mind (he has depression and anxiety as well as ADHD).

I know I still have a long way to go with my journey with God, but I am afraid that my bf is almost dragging me down in a sense and that he influences me to sin. I don’t want to break up with him, he truly is an amazing person and treats me so well. We can definitely have a great and happy future together, I know it. I just want a guy who is more devoted, as I know what the Bible says about unequally yoked relationships. What should I do?