That's true. Expecting a certain outcome leads to disappointment and often kills our motivation.
I like the saying that success comes to those who are too busy doing other things. It means - be in the moment, with the thing you're doing and enjoy the moment.
There will be ups and downs but that's the part of life. You wouldn't know happiness without knowing sadness. Opposites at its best.

It was nice reading your post. Keep on writing and have a merry Christmas!