Finding strength and perseverance to overcome past habits

Salam, everyone. I've been thinking-how do people who've struggled with unhealthy habits overcome them, and what encouraged them to keep going on that path? Of course, as Muslims, knowing we should please Allah and avoid haram is our biggest reason. But we're all human, and sometimes we fall into the same mistakes, alhamdulillah we can always repent and turn back. I'm also interested in the experience itself-like, was it a long journey with ups and downs? Did you slip before fully leaving that habit behind? I reverted not too long ago, so I'm working hard to let go of things I did before embracing Islam. I might fail sometimes, but I keep sincerely asking for Allah's forgiveness, and I'm determined to keep improving. I'd love to hear from others about their journey and how they stayed strong. Jazakum Allahu khayran for sharing-any advice is appreciated!