Opportunities expire really quickly so take them when you can
A few months ago I went to a bitcoin talk and was recommended Monero. I was convinced and would buy Monero, but was too lazy to do anything with the information. As a result, Monero quadrupled in value while bitcoin only doubled in value. I had the opportunity, but I was slow to act, and so I missed it.
If you are unhappy today, act in such a way that you will be happy tomorrow.
Often times when I’m unhappy, I don’t feel like doing anything and so I don’t. This is a problem because you likely don’t feel good today because of what you did yesterday. If you don’t take care of yourself today, then you are setting yourself up to feel bad tomorrow. And if you always respond to sadness in such a way that the next day will be sad, then you are trapping yourself in an infinite loop of sad days.
Even if you don’t feel like doing anything and you aren’t happy, you should still move and do work. When you feel bad because of what happened in the past, realize that you can’t change the past, but you can change the future, so act in such a way that you will be happy tomorrow.