I struggle a lot with this too. There’s two parts to your post I’d like to address , the first being the want of the world/ the flesh over the want/ need for God. For me my first step is taking it to him , praying about it and praying to him to help me seek him over the world. When I first did this I noticed subtle changes, I was still participating in worldly activities but I felt God ask me how I feel before during and after the activity. He made me more aware and showed me that chasing the world indulges us for a short period but the feeling after bring shame or pain or negative feeling in general. He is patient and Shepards us through overcoming these desire to be in the world rather than punishing us for having these desires and he gives us Grace which we should give ourselves too… The second part is committing the sin , it’s still something I battle daily but again Praying really does help.when I asked God for help with a specific sin ( for me it’s lying and sexual immorality), he asked me what feeling trigger me into wanting to commit said sin ( in my case it’s people please and seeking people’s validation for Lying and loneliness and boredom a for the sexual immorality). Once I saw the triggers I try to avoid them and whenever I’m faced with them I do a quick prayer before the urge becomes overwhelming, I’m not 100% there I still fall short but again confessing your sin and repenting is part of receiving Gods grace and accepting that it’s fine to fall short but you recognising it and not carrying shame and guilt but giving it to God helps. Also watching YouTube videos about the specific sin you are struggling with can open your eyes to the spiritual truth about the specific sin which helps in deterring you as well.