I feel stuck between procrastination, regret and wanting to change

I feel like I’m stuck in a cycle that I can’t seem to break.

I keep thinking about things I did wrong in the past and the time I’ve wasted. I tell myself that I should focus on the present and start doing something productive, but then I end up procrastinating again.

Then I feel guilty for wasting another day, promise myself that tomorrow will be different, and somehow the same thing happens again.

I know I can’t change the past, but knowing that doesn’t stop me from thinking about it. I really want to become more disciplined and move forward instead of constantly regretting things.

Has anyone actually gone through this and managed to break this cycle? What genuinely helped you?