As said in your previous thread, not sure if you got the message, but there are very few sponsorship schemes. It's not like it used to be. Those that exist require A levels at least and the competition for places is fierce. It's been said on here a few times before that if you weren't good at school, sponsorship probably isn't the best route for you.
Without academic qualifications, your best bet would be the self sponsored route. With perseverance and effort you will get there I'm sure, though maybe without maths and physics to at least GCSE standard, some of the theory you may find hard.