If you don't like what you're doing, you'll never be able to do your best work.
If you don't really love someone, you'll always be just an ok boyfriend or girlfriend.
Whenever you're doing something you don't really want to, you'll automatically limit yourself.
And when you're limiting yourself, you're automatically limiting the outcome of pretty much everything.
Because all you'll ever get out of any situation is exactly what you put into it...
[Related: I stopped giving a shit a long time ago]