I have great news! No one and no circumstance can control how you feel today. It's 100% your choice.
The most famous story of this power to choose is probably that of Viktor Frankl. The man who not only survived a Nazi concentration camp, but totally broke the "victim of circumstance" mentality.
So, whatever you're facing today, control the way your react to it. It's not about what you're going through, it's about what you see. Perspective beats circumstance every time.