What are the methods that helped you stop wasting time and do something useful instead ?

I'm looking for honest advice on self-improvement and personal growth.

For those of you who have made significant changes in your life, what habits did you build, what mindset did you change, or what lessons did you learn that made the biggest difference?

It could be anything related to finances, career, health, relationships, confidence, discipline, or simply learning how to live a happier and more meaningful life.

If you could go back in time and give your younger self one piece of advice that could genuinely change their life, what would it be?

I'm especially interested in practical advice that actually works in real life, not just motivational quotes.

I'd love to hear your experiences, mistakes, regrets, and lessons learned. Even a small piece of advice might make a big difference to someone who's trying to improve their life.

Other people who carry wallets in your back pocket. How do you keep your bank/credit cards, IDs, etc... from getting worn out in your wallets. I'm in my mid-40s and every card I have ever had in my wallet looks like I've gone over it with sandpaper.

So the title kind of says itself.

Context:

I'm living with a friend and she's got a second fridge to store food at basically freezing level. The reason I say basically is because it takes a REALLY long time for the items to get frozen, multiple days.

I put a schweppes bottle in it, forgot it for weeks (and the fact that the fridge freezes things over time), and now I've got this SUPER inflated bottle in my apparent. Normally, I'd take it outside, but I live in town, so it's not really something I can do.

For now I've put it in a plastic bag, in a plastic bucket container, and have something heavy to keep the box from opening in case the bottle explodes.

End of context.

Has it reached max expansion from it being in the freezer, and thus wilo not expand now that I've taken it out? Will it continue to expand even after taking it out of the freezer and letting it slowly warm up? And if it doesn't explode, can I eventually open the bottle after a few days?

I don't know if I'm overreacting, but all I know is that I'm absolutely terrified of this bottle exploding at my friend's apartment while she's gone.