I've missed more than 9000 shots in my career. I've lost almost 300 games. 26 times, I've been trusted to take the game winning shot and missed. I've failed over and over and over again in my life. And that is why I succeed.
Be true to the game, because the game will be true to you. If you try to shortcut the game, then the game will shortcut you. If you put forth the effort, good things will be bestowed upon you. That's truly about the game, and in some ways that's about life too.
You can practice shooting eight hours a day, but if your technique is wrong, then all you become is very good at shooting the wrong way. Get the fundamentals down and the level of everything you do will rise.
I've failed over and over and over again in my life and that is why I succeed. Some people want it to happen, some wish it would happen, others make it happen. I can accept failure, everyone fails at something. But I can't accept not trying.