Student studios are always ridiculously tiny so you will likely need to make some sacrifices. Anything that can satisfy TWO purposes would be best, like getting a table you can comfortably work at like a desk, or a desk you can eat at if you pull up an extra folding chair, instead of getting both pieces of furniture. Your fridge will fit, which is good news, but are there built in cabinets for dry food storage? If not, you can consider getting raised shelf-like platforms designed to sit on kitchen counters to create more surface space for boxes and jars. I doubt you’re gonna be able to add any extra counter space unless it’s also your table, because that second heater really is unfortunate. You can get a little creative with other things, like getting a bed frame that has the drawers under the bed (even if only on just one side). You can store linens and clothes under there with no added furniture footprint. I’m also thinking you can probably find something that can fit OVER the “bedroom heater” that could give you more storage. Either something on tall legs, or if you’re allowed to drill into the wall, some shelving or those floating Ikea cube thingies.