It is most likely that you’re going to quit when you burn you fuel. At these times, nothing seems to work. All your efforts and hard work are pointless. You made none progress for ages and everyone else seems to be much better than you do.
At these times, I remember what Seth Godin said about the Dip. Everybody falls into it. The only difference is whether we find our way out and reach to the other side or we quit and pursue something different.
Only the few can get out of the dip, and those who do are blessed and loved.