How to build your endurance in 5 steps.
1. Do more than you did last time. Even if its by a few seconds or one rep, at least you pushed yourself. 2. Increase your heart rate. Exercises that encourage your heart to get pumping helps increase your stamina.

3. Run on different levels of ground. If you have hills nearby, try walking up/down them. This makes your legs become stronger & more effective then exercising on flat land. 4. Stop drinking carbonated drinks. Carbonated drinks decrease your ability to get maximum breathing & really make your stomach really bloated. 5. Stretch! Your muscles are more likely to use their full potential when you stretch them. Stretching also prevents cramps & pulled muscles.