One way that I’ve learned to take control of my life, and my emotions, is to stop setting expectations like I used to. I still have expectations each day, but I’m more realistic about what those should be, and I take more time thinking about an expectation before putting it on my list.
Taking that extra step and thinking things through beforehand really simplifies things. If I treat expectations like any other potential worry, my life gets better almost immediately.
The main thing is to stop worrying about so many things. Life is too short and shouldn’t be spent being miserable.