But really, as a tiny woman weighing less than 90 pounds and who has a kidney issue requiring a restricted protein intake, protein powder is low priority. Being a student on a budget is even more reason.
How close to your current recreational spending is this? Cutting back is obviously essential, but if your target budget is unrealistic (like if you’re currently spending $100+), you’re going to crash.
If food, “rent”, and “utilities” are already covered, then it’s really just a matter of luxuries and fun money (and transportation/gas), which is entirely habit-based and come from conscious decisions. That’s a really good position to be in.
We also had a good Personal Finance thread a few months ago with more info about avoiding debt and building savings, which is never too early to get a handle on.