What can I do?

I want a change in life. I want to work at a place where I'm comfortable. I have years of experience in childcare, but I'm done with it. As of right now I'm working at a daycare and I need a break I also don't enjoy it. What else can I do? I never went to college, I don't have any degree or a bachlors. I'm 31 years old. Is there anything out there that I can do? I don't have a lot of experience. I do love marine life. I like to swim and occasionally sing. Help.