Budgeting is hard. But I can give some tips.
-Learn to cook a bit. Some of the greatest chefs alive today, amongst a horde of other excellent gastroneers, have extensive Youtube channels. You can learn. A lot. Cheap, amazing food. It's never-ending.
-If you drink. Don't drink to get drunk. Drink for the taste, and to get pleasantly tipsy and >social<.
-Be on the lookout for good off-season weekend escape deals close to you. There's a world of difference between living in a crappy apartment. And living in a crappy apartment, but staying over at a half interesting location for a few nights a few times a year. Heck... Sometimes a B&B in the next town is enough. At least you can then explore the town for the weekend. There are great benefits in spending some time with people you will never see again too.
-Get a cheap hobby. Or two. Or three. Or ten. Sometimes any engaged activity is all you need. Better than being bored. Don't have to be good at it. Why would you need to be. Don't have to keep at it. Why would you have to? No rules with hobbies. Doesn't even need to be something that inspires you. Just stuff to do.
-Given half a chance do work that you enjoy. Even if you struggle. The struggle is a given. The only difference is what you do while you struggle. You don't want regrets on that level.
-Relax about relationships. Keep yourself clean, healthy and fit, and you'll have it better than most people. No Armani suits/Chanel handbags needed. And then multiply that by the above...
-Be mindful. Look it up.
Don't let anybody tell you. Marketers are the devil. They want you to be miserable with what you have.
-Remember that there are royalty that would sell their kingdoms in exchange for your youth, if they could.
But yeah... Cooking. That's the real deal for me at this point in my life. When I think back how I lamented my inability to afford a McDonalds meal, at one stage, when I was still struggling financially, then I almost want to vomit now. You can make yourself a steak (small), with a great pan sauce and chips, for less than the price of a McDonalds meal. In 20mins... While feeling like a boss. Believe me.