Good luck on losing the 50lb, thats a great goal. Have you looked into support groups like FAA to help, especially when your food cravings are strong from stress? They can also help you keep the weight off and you will no doubt feel so much better being lighter.
Regarding the 50lbs of fish challenge, that should be an easy goal to make. Thats just 2-3 days of good fishing!
Don't worry about the mule, just load the cart