Why can't I do more than 2-3 days ?

It's been one year I'm doing NoFap, and despite my motivation, the good habits I've taken (no social media, daily workout, cold showers, harder work, etc.), I still give in to most urges, and I can't hold more than 2-3 days. It's really demoralizing, and even though I will never give up, I feel hopeless, like if I'll be stuck in this situation forever.

Do you guys have advice or ideas to help me ? Thanks