I CAN NOT break this habit of staying up late, HELP!?

There are natural things you can take that do WORK! You just have to see which one is better for your chemistry. Some things to try an hour before wanting to dose off would be L-tryptophan, GABA and most importantly Melatonin. The one that doesn't leave you feeling groggy the next day will be the right one for you. You can purchase these from iHerb.