So I can't tell you anything specific since I'm the live in a trailer in the woods type and have no idea how to manage getting an apartment in california (you mentioned being there in another comment). I can give you some general advice though for making your money go as far as possible.

Big one is phone plan. Most people overspend on this. You can get unlimited call/text/1GB per month of data for 8$ per month with US mobile and I think Tello too? There are also similar deals if you need a bit more data. I just use wifi for most things so the data isn't needed. When not at home I don't use my phone for anything but calling, texting, music, and navigation. So I have Organic Maps downloaded to work offline, and mp3s stored. Cheap as dirt.

For food Chicken Quarters are a great hack to get meat for cheap. You can buy a 10lbs bag for 8.99$ where I am atleast. Just take them out and bag them up individually (You'll want large ziploc freezerbags for this) and put them in the freezer to use when needed. Pair that with some rice with a bit of peanut butter mixed in and you've got a very filling meal for dirt cheap. Season it however you want. If you mix up the rice recipe and do the chicken different each time (like use bbq one day, orange sauce another, lemon pepper another, etc) it keeps a lot of variety while staying quite cheap.

For clothes you can sometimes find bulk amazon returns of stuff for sale. Like I got a pack of t shirts that are normally like 35$ each that just had a few strings or other minor defects. It was 12$ for 10 shirts. Just sent to me in a big bag. I snipped off the strings and washed them and theyre serving me well.

Don't pay for subscriptions or any digital content. There are other ways to get that. Purely Education link unrelated

A dollar saved is always better than a dollar earned. Be frugal as fuck in all things, and good luck.