I'm married but starting to wonder if it's worth it
Do you want to divorce?
I don't know.  But I'm starting to think I don't need this anymore
I don't know your entire situation, so it's easy for me to say, but you shouldn't stick around if you don't want to.  As painful as it may be, getting a divorce may be the next step so that you can stop wasting your life.
What are you saying?
I'm saying that you should talk to your spouse first and see if they feel the same way.  You may be able to rekindle the romance in your marriage and feel happy again, but if you have tried everything and still feel lost, it might be best to separate and move on.