Another option is via
The Barry College – International Centre for Aerospace Training. You don't need any qualifications to enter the course, just the willingness to work at it. No complex algebra, to be honest I would rate it as no more than GCSE standard. Alternatively you can self study and just pay for the books and the exams. If you do the course you can get a BSc, if you just do the exams you will get the theory passes required for your licence. Ultimately it depends where you want to go with all that.
But that's what you can get by your own efforts, the harder bit is getting the practical experience for a licence, in our place we get applications all the time and sadly we simply can't take them due to the sheer volume and the amount of work it is to train new mechs and supervise them. Even if they worked for free it would be too much of a load on our experienced guys.
Alternative strategy, study for a degree and sign up with an agency to do tech records work or something office based.
Like I said, which road you take depends on where you want to end up.