Is this a good idea?

Cutting the fastfood out is the best thing to do. Lean cuisines are good for counting calories, but they aren't very filling. They're also pumped with sodium and processed stuff that messes with metabolism. I'm also a university student (Tx) and I found the healthiest microwave meals are the organic- vegetarian-hippie ones at whole foods stores. They have lots of vegetables that are easy to microwave and aren't lurking with scary hidden preservatives or dyes.

I would not do the same exercises every day... Do the strength part every other day, the walking you can do daily. Also, short on time, look up HIIT on the Internet.. Great way to get in great workout in minimal time... Incorporate about 1-2 times a week.
As far as food, I have to pack my lunch and dinner for work every Wednesday with no access to microwave or refrigerator. I have come up with creative ways to help address my issues of eating healthy.

I pack greek yogurt that i put in the freezer (approximately 30-60 minutes) while i am getting ready in the morning. I pack frozen edamame snack packs or frozen peas. Both are high in protein and also double as a veggie. They also help keep the green beans and yogurt cold. just add an extra cold pack. I also pack fresh washed green beans. I pack a fruit such as an apple with natural peanut butter. There's a brand called Justin's and a few others that come in single serve packets and in different flavors such as honey peanut butter or maple almond butter... Great on an apple or banana! I am vegetarian so I also bring along seitan, shiitake mushroom or tofu jerky but if you aren't a vegetarian you could pack other kinds of jerky like turkey to get protein. I also like to pack some sort of meal replacement bar like a Kind fruit and nut bar, Larabar or something similar. Pouches of tuna are great and you can "find" packets of salt/pepper, mayo and/or mustard/honey at your local WaWa to mix with the tuna. i assume Rutgers in NJ so you should have wawas's everywhere.). Eat the most perishable items first such as the yogurt. Also if you don't want to stop at fast food go to a Wawa. I eat a double egg white, one slice of American cheese on an English muffin almost daily from there. It's about 275 calories. If you can find a Wawa that has the multigrain English muffin it brings it down to 230 calories. But Wawa has awesome convenience foods that are healthy choices such as veggie snack packs, yogurts, some soups, built to order sandwiches, etc. Just read labels. If you must go to fast food, grab a salad or just a burger... No meal with French fries. Hold the cheese, add extra veggies. Or if you go to Burger King they have a morning star veggie burger sandwich, without cheese and condiments, that I eat once in a while. Those options are higher in sodium but not overly high in calories or fat.
Hope this helps!

In stead of the frozen meals, cook a bigger pasta dish with whole grain pasta and chicken, veg and whatever sauce you like to use...then portion out and freeze the left overs, way yummier, way cheeper and way healthier unless you go with super creamy pre-made sauces!