Why do you not have to wait to become happy, if you long to be happy again? Or become a little more happy.
Because if you are waiting for a certain mood to appear, you are telling the primitive part of the brain, that you are just NOT happy. You're waiting to be! And it should rather happen today than tomorrow!
But then you want something out of a painful feeling of lack. And it's actually painful, because it's associated with pain to want something you do not have. And do not know how to get. 😟
But think of it this way: You are sad, unhappy, angry, discouraged, etc. Yes, it is how you are feeling and that is how it is (right now). - BUT ... you are also SOMETIMES happy, a little uplifted, hopeful and yes, just neutral. So instead of making your state of mind an either-or, make it a both-and. Then you make room for all of it!
It's a more mature way of looking at one's emotions. A more emotionally mature way, and most of us are actually quite immature in our emotions and our approach to them. Ie. it becomes very black-and-white, either-or, and while you are in the black, you will look for and long for the white, making you even more black. But the white is there all the time. It just does not always dominate.
I worked, as a younger person, with lonely and depressed people, and one of them told me, that she was feeling so bad, that she could not go shopping, and at first I thought that then there was really nothing to do. But then my manager said, "But there are times in the day when she CAN do better."
Our emotions are not stationary. Remember the nuances! And be good to yourself. You are both-and 🙏🏻❤️