I have always considered Ridestuff’s unwavering first suggestion - to go get a Class One medical, to be absolutely top advice for anyone who dreams to be a commercial pilot. Yes it’s expensive, but it does two things for you. Firstly; if you can’t get a Class One, that’s it - dream over. You’d better stop wasting time on it, and get stuck into considering what other career you’re going to work towards. You could be super fit, but have undiagnosed colour vision and you’d be screwed (for example). Secondly, if you’re interested in a sponsored scheme, the possession of a Class One is probably the cheapest thing you can do to demonstrate that you are serious about wanting the career, and that you are not just applying on a whim, on the off chance that you get selected.