I'm 26 and hold a 2.2 degree in Biomedical Science from a British university. I took my A Levels in Biology and Chemistry but only got an AS Level in Maths and Art. My work background is that I have been a carer for family members for many years. I would love to pursue Maths teaching but I am unsure whether I would be accepted onto the programmes and whether I should complete an A Level in Maths with a view to apply for PGCE or Schools Direct Route in 2015.
Mathematics and teaching it is not a suitable job for everybody. Math is a love and if you haven't got a love for mathematics it would be boring for you and your students.
If you have huge interest to work with mathematical subjects, you would be the happiest person in your circumstance. Elsewhere it is not good idea to make it as your job.