Cries of 'go for it' from those who haven't been there may be encouraging, but are little practical use. You are obviously a level-headed person, and are taking the sensible approach by asking the opinion of those who have gone before you. The trouble with Wannabes is that so many of its contributors haven't been there!
A big factor in your favour is that, as CC, you are aware of the lifestyle and its peculiarities and problems, so it won't come as a surprise to you. You also have some understanding of the pressures on airline pilots. This is all to the good - you will be making your decision with far more fore-knowledge than most wannabes.
Your age isn't an issue yet. There is no doubt that age is an issue; there wouldn't be so many threads about it if it wasn't, no matter how much some would wish otherwise. You may be too old for some of the 'assisted' training schemes (I would not call any of them sponsorships - you're the one that pays in the end!), but you're OK for others, I believe. However, you don't have long to make up your mind. If you don't manage to get on an assisted scheme, you need to consider how you will raise the considerable amount of mone you will need. There are several threads here about that thorny problem.
As for your eyesight, if it is correctable using spectacles you will most probably be OK. There are specific standards for all elements of your sight, however, so a visit to an Aviation Medical Examiner would be wise. If you're still in Dubai, you may be able to do that there more cheaply than here.
Don't worry about the maths and physics side too much. As a teacher, you have already more than adequately demonstrated that you have the intelligence required. You may need to brush up on a bit of basic maths and physics, but it really isn't that demanding.
So, what's the answer? Well, the odds against you are not unusually high. They're pretty daunting against anyone, however! You are likely to have as good a chance as anyone: your age isn't yet a problem, your eyesight probably isn't, and your science knowledge can be tackled. You appear to have a good attitude, and you don't seem to underestimate the challenge ahead. I would say that, if your aptitude is as good as your attitude, you should do well. Good luck!
Scroggs