What crash diet and exercise can i do to lose weight quickly

im 22 and weigh over 15stone im 5ft 5 and im a size 20. This is the fattest i have ever been and i feel so ugly and disgusting, i found a photo from when i was 19 and i looked so pretty on it i feel like im not that person anymore and feel like that its so unattainable to ever be that person again, ive always struggled with my weight but ive never been this fat. Im 23 in May and desperatley need to lose weight before this, although im not stupid and i know im not going to lose that much in that short a space of time. Ive been to all the slimming clubs and even the doctors but its not working, i used to make myself sick and really feel like im gonna do it again because i just dont lose weight quick enough on them, i cant afford to go to the gym and feel like people are laughing at the fat cow trying to lose weight if i go running then get puffed out after such a short space, i dont want to hear about crash diets are bad, i want to hear about crash diets that will give results.

You dont want to hear about crash diets that are bad? You said you weren't stupid.

Yeah you will loose weight on a crash diet but as soon as you come off it you will put all the weight back on.

If you want to do it the sensible way(the only way that will work and be permenant) . You need to eat healthy food like fresh fruit and veg, carbs and protein. Don't skip meals because it will only make you hungry and binge on bad foods. Eat one main meal of breakfast, lunch and dinner and if you feel hungry between those times snack of healthy snacks like fruit.