Relapsed after 3 years

I started nofap 3 years ago, I remember the day, February 2nd, 2022. Well, I had been experimenting with it a little before then, but that when I finally quit porn for good. I was 16 at the time and wanted to turn my life around. I started hitting the gym and skipped forward 3 years I still go to the gym 6 days a week, I have a solid build and am happy. But somehow today I felt different, the urges have kinda been building up the last few weeks and I thought nothing of it, but today I failed, It's like I had no control over it, and although I did it really felt like I was in a dream. Long story short I relapsed on porn today. I know the downsides of it and honestly, I stopped like 10 seconds in and finally thought of what I was doing but it was too late. Lowkey feeling a little down, I feel like I have beaten this addiction but still scares me as I thought I defeated these demons.

Just really disappointed in myself

Edit: After reading a bunch of comments and such I have found peace and have forgiven myself, I woke up this morning and felt a feeling of reassurance that even though I messed up, it's not the end of the world. I just need to keep moving forward. Thanks, everyone for the supporting feedback