Knowing it is difficult whatever you want to accomplish makes it easier to keep going.
The expectation should be clear. Yes, you will hit your head to the wall sometimes so hard. At least you need to aware of why and what happened.
If anybody told you, it would be easy; either they live in some sort of “dream” world or are born with a silver spoon on their mouth.
Never settle with small wins. Always start with “beginner’s mind” motivation. Try, learn, and do it again.