I will Beat her. I will train harder. I will eat cleaner. I know her weakness. I know her strengths. I've lost to her before but not this time. She is going down. I have the advantage because know her well. She is the old me.
This is a very true quote, meaning that you should never give up, for the greatest thing in your life might be right around the corner. If you give in to temptation, you may never find out what success you could have had.
Giving up on your goal because of one setback is like slashing your other three tires because you got a flat. So giving up on my goals for succeeding school and graduating will not be stopped by one setback.