Hi Brian a big welcome to DC
Cooking is not scary and but needn't be difficult (even if it can come across as a little
to a newbie). I'd suggest that you take out a stack of various cookbooks from your closest library. Pick ones with titles or themes that appeal to you and see if any of the recipes in them catch your eye. There are lots of great books with titles like "1000 recipes for college students" (I don't know if that's a real one, I just made it up as an example) which can help provide you with some easy and (hopefully) economical meal ideas.
Life with a microwave can be tough, but it's not that
brutal. I've lived in a place with no stove (I did have a small hot plate) for a while and I learned that you can make tons of stuff in the nuker. From rice (an old Pyrex microwave-proof baking dish is awesome for this purpose) to a whole cooked chicken. They are also good for steaming veggies, cooking eggs and a lot of other things (while at the library look for some microwave cooking books).
A lot of things like (some) vegetables and fresh fruit don't have to be cooked. Do you have a blender? Or access to one? Fresh fruit, yogurt and perhaps some oats or seeds for fibre make great smoothies which can be really filling. Things in wraps, pita pockets and tortillas are also handy. You can cook chicken breast (or thighs, which are often more economical) in the microwave (I suggest adding a few TBSP of water to the dish, it helps to prevent them from drying out) then season them to taste (fresh herbs are great), maybe with some salsa, pesto, tomato sauce, cut up chillies, or anything you like. Add the meat to a wrap (or whatever you like) with your favourite vegetables and salad greens for a pretty healthy and quick supper or lunch.
The best way to learn is to experiment! Have fun, be creative and see what kind of yummy dishes you can whip up while your dorm-mates look longingly at your plate of homemade food over their take-away bags