You have to be able to withstand the suffering for the reward. There will be pain. There will be struggling. There will be hard times.
The pain is growth. The pain is the reward. You earned the pain. Keep your eye on the prize. Know that everything will be worth it in the end. The pain is temporary and victory is forever. The harder you work and the more pain you can withstand the more it will pay off. If you want something you must give something.