Think too much

I make myself so busy today, but my mind still mess up. I am so tired of thinking. I wish I do not have to think anymore, but what can I do. I like to quit my work, but it's not easy. I need to work and some of the people at work are close  to me already. I feel like they are my second family. I don't know what to do anymore. I need to take a break and relax. Too much going on right now.