Are there enough hours in the day?

Hello...
I'm tired; mentally and physically. Why, you ask? I'm currently balancing work, internship, and graduate school. When the weekend comes, I don't want to do anything but stay around the house and do nothing, so my weekends are spent doing nothing, and doing homework. My internship involves counseling clients, so after spending the week doing so, I like to recharge in the peace and quiet of my home. I really want a vacation, but can't take one right now.
I have a great family. They are a blessing to me. I have friends I've known for years, but we really aren't in contact. As far as my "best friend", we've known each other since we were kids, but as adults, I can't help but admit it feels as if we've grown apart. Times when we communicate are few and far between, and it feels like I'm the one who does the reaching out.
I've been in a relationship w/ a gentleman who started as my friend for about four months. He's a good guy, and he's crazy about me...but lately I've been questioning if we just need to go our separate ways. Maybe it's the demands I have...I don't know.
I know that if it wasn't for God I'd probably be nuts. I'm grateful for His mercy and grace.