“Age wrinkles the body, quitting wrinkles the soul.”
Never, ever, ever, ever quit. It is not easy to accomplish your goal when you’ve tried and been knocked down. But if you want it badly enough it is worth getting knocked down once, ten times, a hundred times, if it means in the end you will achieve your goal. Quitting might make you feel better for a little bit because you don’t have to feel the pain of having not reached your goal yet. But in the end, knowing you didn’t try your hardest to reach your goal will hurt even more than trying and failing ever did.