Exercise will most probably still give you Hypos with a pump. The advantage is you can reduce your insulin consumption 2 - 4 hrs before you exercise, but you will still have to plan it. If the D team say yes go for it. If the difference is pay for it now or get it free in a year, personally I would wait. I'm about to go onto a pump in just under 2 weeks. In Australia this involves visits to Diabetic Educators x 4, Specialist x 1, Dietician x 2, just to get onto it followed by numerous follow ups. Daily Texts for the first week and the list goes on. Try a Libre first, this will give you an idea what is going on and if you have to have a snack before exercise. It's more than possible you may have skin reactions with the cannula site. Your D team will most probably test that first. As far as a crazy life MDI should be almost as accomodating. I skip meals delay meals up to 6 hrs. I have been warned for the first 3 months a pump is a life changer and not necessarily in a good way. Don't expect to hook it up, off you go and life is great. If you are still at school studying, I wouldn't take the pump on in your final high school year.