Been quite lazy since the year started so, I've decided to start my exercises from today. Any tips on how to stay committed with exercising?
I would say to start small
Make diet changes that don't feel like you're giving up the love of your life. Choose workouts that don't make you start to dread your exercise time like it's torture.
If you find yourself starting to regularly think of excuses for why you should skip your workout, don't feel bad, just switch things up. Pick an easier workout or just a different one. If you skip a week and eat junk, don't beat yourself up. Just get back to it when you can. The key is to keep coming back to it, to keep sticking with it through those times, to the point where it really becomes a solid habit, a part of your life. If you can do that, even small changes will pay off huge later on.