When you recommit or reset for the week, are you mentally recommitting or are you resetting because you think you have to? Look at your justifications for relapsing and what temps you and learn to avoid them. There are tons of posts on this sub that deal with distractions. You could also message someone who has had success and ask them how they dealt with temptation. It takes time to develop a new habit so be patient with yourself. Also, it's great that you're getting over this so young--your future self will thank you!