Need Budgeting Advice

Hey guys, I’m currently 16 trying to figure out how to budget properly. Here is what I have so far but any advice would be helpful. Some important info would be that I’m in line to be promoted soon. I also pick up a lot of shifts. I make around $800 - $1k more on a highball, but im not working that in since that depends on the availability of people needing shifts covered, so for now im just going based of my normally assigned shifts.

Monthly Income (Lowball): $1500

Gas - $320 Factor (Meal Prep) - $500 Car Insurance - $200 Self Care - $150 Fun Spending - $130 Savings - $200

Different goes to savings. Expenses are highballed.

Spending Explained:

I don’t drive around a whole lot, just school and work so I don’t need gas often, maybe every 1 1/2 - 2 weeks. But for this I’m assuming it’s once a week.

Factor is a healthy prepped meal order thing. I’m learning how to cook and I’m trying to find good recipes with good macros but for now it’s the easiest way to him my macro goals.

Car insurance is self explanatory.

Self care is honestly really high balled. But it would be things like needing toothpaste, lotion, shampoo, body wash, etc.. I don’t need this stuff often but I’d still like to set some money aside and pocket the difference of what I don’t spend.

Fun spending would be for me buying new books or games and whatnot.

Savings goes into a high yield savings account but alternative options would be helpful.

If these doesn’t make sense or you have questions please lmk. I appreciate any and all feedback.