That's the line. The line called "depression, lack of motivation". It's unbelievably and unexplainably hard to get over that line, because it also takes time. And most people don't get over it, so they fall back or in other words - give up. But if you can manage to squeeze your sack with full force, scream in agonizing pain and push yourself forward with your legs shaking from lack of will power, you can get over that line. And once you get over that line...-
-.. well, once you get over that line, a new box of shit gets thrown in your face, because life is like a zebra. If you don't approach it with a mentality of: "Okay, either-way, it's going to be a box of shit. I just have to choose which box of shit I like better and go for it.", then you won't make it anywhere close to the dream of yours.
That's exactly why people say that becoming a successful person is a very hard job, requires tons of sacrifices to be made as well as strict discipline.
Basically, the only cure is you yourself. Welcome to the reality, brother.