It all depends on how good you're doing in your life. Know this and note this - now, when you still have support of your parent(s), you should use this time to your adventage and prepare yourself for the fucking future and I mean the vault-tec style. Prepare yourself for armagedon of taxes, responsibilities, law and health issues that will grow over time.
While you still have lots of spare time after school try to find something you will like doing for life. Something entertaining or something that gives you lots of satisfaction at some point, whilst something useful, something people would pay you for. Having a job that you're good at is a key, and you will be good at things, that you don't force yourself to do. If you do have a passion and it makes sense (if you're not sure - ask your parents or lots of adult people and get the general idea. Ask them anyway even if you're sure, you could be wrong about it at this point), then try to get good at it, try to get experience. Think of passive income at this point, but don't invest actual money until you will be able to earn it.
And if you will be okay financially, then life will be okay. You will be able to actually have enjoyable free time and not to worry if you can order a fucking pizza this month.