Hi! I just graduated this year from college. I was pretty much in the same position as you. My hair is fine and normal to low porosity. Once I had my class schedule figured out I styled my hair once a week and either the night of the last class of the week or on the weekend. So that meant sometime between thursday afternoon and sunday.
You could try protective styling like twists or flat twists during 'school days' and wear a twist out/puff etc when you are not in class or have down time.
I suggest investing in an oil like olive oil. It'd be great if you could use coconut oil as well. I used it exclusively my first year and it really helped to protect my hair from myself lol and the chlorine because I saw a lot.
You can try spritzing your hair and sealing it with oil overnight so that it is soft and pliable when you wake up to wash it.
Detangling my hair with conditioner and letting it sit for a while as a deep condition before washing my hair really cut down on time. Some people leave the conditioner on overnight.
Conditioner + oil = slip!!
Vo5 conditioners are on par price wise with Suave, around a dollar or less. A lot of people have success with the moisture milks line.
You should try tresemme naturals conditioner. A number of people have success using it as a leave in. This could cut down on money because it is a big 25/32 oz bottle.
You can also try using everyday items to deep condition your hair like plain greek yogurt or honey or avocados (must be blended thoroughly).
If you are in to gels I recommend Garnier Pure Clean.
For dryness issues, try to condition your hair more than you shampoo. I shampooed once a week or once every other week and conditioned once or twice a week. Some people shampoo once a month.
For me diluting some shampoo in an empty squeeze hair dye bottle with water made it less drying.
The fall/winter can be rough. I wore my hair mostly in twists.
A good investment might be a sleeping cap/bonnet that you can wear under your hat/beanie while you deep condition or have a bad hair day lol.
to treat your ends kindly. Coat them in oil.
and the most important thing is deciding on what works for you.
Some helpful site and people are:
CollegeCurlies :For the fabulous and the Frugal
Naptural85 on youtube
Sera2544 on youtube 4b/4c hair
Africanexport on youtube
NaturalMe4c on youtube
Glamfun on youtube
Spicyeve on youtube
You could also look up the LOC method and the baggy method.
This is a lot of information. I hope it is helpful and have fun in college