I've gained 25 pounds in 3 weeks. i eat a healthier diet now then i ever have. im now 292lbs.why can't i lose weight and why am i gaining so quickly?

Need supervised prg: You need program that need some supervision - your way of doing things might cause harm by wasting essential muscle. Over 150 pounds unsupervised program does not work.

What are you eating?: Gaining 25 lb in 3 weeks is equivalent to consuming about 28, 000 extra calories a week. That's pretty difficult even with a bad diet. Are you retaining fluid, have htn, CHF or kidney problems? Have you stopped taking any medication or started any new ones? If not, accurately track your calories for a couple of days and see your family doc for further evaluation. Check your weight in the morning.