Feeling worn out

 Lately I've been feeling worn out and just done with my marriage. However, the thought of a divorce sends tremors into me. I've been married for 33 yrs and the thought of being on my own scares the crap out of me. But I also just want to be happy in my marriage and I'm not. There's no excitement or happiness from him towards me. At least I'm not feeling anything. 

Just not sure what to do. Lots more praying I guess.