You are allowed to whine, despite how all those sayings make you feel. You have every right to be a little bitch about your life’s difficulties if you are okay with it getting worse.
This does not mean it is good for you, however.
But this is kind of what’s going to happen anyway. At least until you see that it doesn’t bring satisfaction, you complain. And you make it worse by having strict rules even on that. After all, what’s more natural than not being pleased with a negative situation? You are supposed to be not pleased. But not dwelling on that is what makes the world of difference.