How much horse care experience do you have? if you haven’t then it’s probably a lot to take on learning all that too.
A full time job plus a full time college course already takes up a lot of time, plus homework, how would you fit in twice daily visits to look after a horse? Realistically I would allow up to an hour in the morning to feed, turnout, muck out. Then in the evening another 2 hours to bring in, ride, feed and tuck in for the night, is that feasible on top of a college workload? Unless you can afford part or full livery?
Also be wary cost wise as it’s not just diy livery costs to keep a horse, there’s so many extras like feed, hay, tack, vaccinations, teeth care, worming, foot care, etc. plus the dreaded big vets bill that can happen at any time, or you get insurance to cover that but that’s an extra monthly cost and you still have to pay part of the bill (the excess).
A share is probably the better way for you to go if you want more riding time and more responsibility at the moment. This is where you pay a fixed contribution towards keep of someone else’s horse, and you have a set number of days each week where you are responsible for the care and exercise of the horse. You do the relevant chores like mucking out or poo picking the field, get the horse in/out of the field or stable, groom and check the horse over (and treat any minor injuries or anything you find), tack up and ride, change rugs, all without assistance as you will be the only person tending to the horse on your days. But the owner remains responsible for all the bills and organising routine appointments etc. so you know exactly what you are spending each month plus if there is serious injury or illness you have the owner to call on to see how it’s best dealt with.