So absolutely all your money is going to rent/utilities and these other 4? You need to track your spending, maybe you have some subscriptions you can cancel or car ins you can negotiate or a phone bill you can lower? If you have exhausted everything and can’t find any place else to cut- then yes, that is the most likely place. But i find if you can’t have a little fun it makes it harder along the way. Take a harder look at your budget/existing expenses (non envelope related). You could always try a side hustle or selling some stuff