Hello! First off, I'm sorry you're going through this. Depression is a horrible thing to experience, especially in a high-pressure environment like the second year of college. Let me go through a few ideas, and hopefully some of them can help you.
Getting yourself out of bed and to sixth form every day you can might be a good idea. I know it can seem impossible sometimes, but if you don't, it can lead to a downward cycle of not wanting to go out because you feel isolated / hopeless, then feeling isolated / hopeless because you don't get out enough, ad infinitum.
If you can try and find a good therapist, they might be able to help you out. Not just any therapist - there are a lot of bad therapists out there, and from what I've heard, the NHS's psychological services are in too bad a shape at the moment (long waiting lists, inconsistent quality) to probably help you, so you might have to go private if you can afford it. If you do decide to go down this route, don't be afraid to call it quits with a particular therapist after one session. I've heard a lot of people say therapy has been incredibly useful for them, but it took a lot of tries to find the right person. Look for experts and well-reviewed therapists online, ask a doctor you trust for recommendations, etc. Some schools and colleges offer free confidential counseling, so you might want to look into that, too. Again, though, I've heard their work can be patchy, so if you do try it, always feel free to jump out if it's not helping you.
Have you talked to your parents or friends about this? I know it's incredibly difficult to open up about stuff like this, but if you know someone who you reliably think you can trust to listen closely, non-judgmentally, and confidentially, sometimes it can go a long way.
I've generally heard it said that medication should be close to a last resort. It's not an exact science, it's often a matter of experimenting until you find the exact cocktail that works for you, and it sometimes comes with some undesirable side affects along the way. If you think you might need drugs, I suggest you try going through other options with doctors, therapists, group support sessions etc. first, and then proceed with the medication if it becomes clear after consideration that it's your best situation.
I really hope this has helped, and wish you the very best of luck.