Becoming a vegetarian will help lose weight and waken me up
 

i need to shed 20 pounds off left, i already know about exercise, I exercise 40 min. 5 times a week. But whenever I eat meats I feel too tired for work outs and want to stop but when ever I eat healthy that day i can run the whole way through. So my question is should i become a vegetarian because it could have health benefits, give me energy, like would there be any health risks at all

You should ask your doctor about the health risks of any diet.
Vegetarians usually need to be aware of getting more iron in their diet from plant foods, and also certain B-vitamins. Your doctor could recommend how you can eat a healthy vegetarian diet.
Then there are also many, many books about vegetarianism (your library should have a few). Diet is such an individual decision, and each person's circumstances are different.