Just Do It so there is no would've, could've or should've later

   You will have no regrets if you know that you did everything that you could do.

   You won't have to say would've, could've or should've if you did everything that you could.

   You will not be successful at everything that you try to do. But at least you will be proud that you tried to do it. 

   You won't know what is actually possible unless you try everything that you could possibly do to find out.

   You can only do what you can do.

    So as long as you did the best that you could do then you can be proud of yourself no matter what the outcome is. 

   You don't regret the things that you tried but failed at it. But you will regret the things that you failed because you never even tried to do.