I don't doubt for a second that you're a shiny golden God among mere men but just in case you aren't: your will will falter many times and that's okay! You'll get over it eventually. Rocky speech about getting back up goes here. I mean, I've been working on my second game for over a year now and it's not even close to done although it's theoretically a workload suitable for 4-6 months all in all, in my eyes. Alas, I'm not a perfect workhorse of a man + game dev is hard.
The best thing to do is enjoy what you're doing because well, this is the time of your life! Enjoy the ups and enjoy the downs. It's hard not to when you're working on deepthroat porn though, so I think we both got that covered haha Best job ever.
And to everyone else reading this: throw this dev some money for extra motivation! You know it's the right thing to do