HELP

Okay so I need some help. I left school a couple of months before my exams in 6th year. Obviously I made a huge mistake. I really want to study medicine at university and if I can make it happen then I most certainly will. I need to go to college to study the relevant subjects etc. I'm looking to do this is in the most time efficient way and I'm really just wondering if it's at all possible to self teach some of these subjects on the side and just pay to sit the final exam; if so is possible to do that then how would I go about it. Recently I have just hit a brick wall and don't really know what to do. Any advice/help would be much appreciated.

Okay so I need some help. I left school a couple of months before my exams in 6th year. Obviously I made a huge mistake. I really want to study medicine at university and if I can make it happen then I most certainly will. I need to go to college to study the relevant subjects etc. I'm looking to do this is in the most time efficient way and I'm really just wondering if it's at all possible to self teach some of these subjects on the side and just pay to sit the final exam; if so is possible to do that then how would I go about it. Recently I have just hit a brick wall and don't really know what to do. Any advice/help would be much appreciated.

I did history a level with the national extension college it was really hard to stay motivated but very rewarding. Look up the NEC though I would recommend if you can going to a college to study as it is structured and the routine keeps you motivated. I couldn't goto college as I live in a remote rural area of Wales and the only option was online learning. Oh and the NEC is expensive it cost me about £400 to do just one a level.
To do an a level without going through an online college like the NEC would be even harder you'd have to find out the syllabus and find an exam centre yourself and you wouldn't have the valuable feedback from a qualified tutor.

I'm trying not to stress but I just feel as if everyone around me is doing so well and have all found their path and there's me just standing idly watching them go. Well if it helps I've worked in a private care home for a year and have been employed by the council for the past 7 months in a residential home. I just never knew what I wanted to do in high school especially when it came to choosing my subjects.. I was too immature at the time. I'm not sure which courses/subjects would be beneficial to me but thank you very much for taking the time to reply! (PS i've been out of school for 3 years come may and I'm really eager to get back into education before I wish my life away)