For every excuse that you've ever had or came up with of why you can't or couldn't, there's someone who's had that same excuse or even worse, but found a way and did

You have to focus on the finish line from the starting line.

You can either complain about it or grind, I choose to grind.

If you're going to be fighting anyway, why not fight to win and not just to survive.

Discipline is the thing that makes you do what you might not want to, but you do it anyway because it's what you have to do in order to get what you want or desire.