Best of luck to you. If you get worried about anything after surgery, come back and ask questions, your friends here will make you feel so much better.
I'll tell you how I felt the day before surgery - S C A R E D. I almost backed out the day before surgery and the day of surgery. I think it's perfectly normal. Oh and I was mad the night before - like angry. Angry at myself for letting my weight get out of control. It was weird - that emotion came from no where! I can laugh about it now, but it scared me when I was going thru it. (My surgeon gave me a pass for dinner the night before surgery - No restrictions, go out and have a great time. What the heck - after a two week liquid diet? So the hubs and I had an awesome dinner together and celebrated - it will go down as one of my favorite meals and it had nothing to do with the food.)
Here's what I did - I kept thinking about the reasons I wanted the surgery in the first place. I thought about my husband and son and how I wanted things to be different at home. I wanted to be an active participant in my own life. I wanted my husband to have a true partner in life, not someone he had to take care of. I wanted my son to have a fun mom that was full of life, not someone that watched everything from the sidelines.
I also spent a lot of time on this forum - it's helpful to read what others are going thru.
So, best of luck to you tomorrow - you'll do great. It will be over before you know it. Walk as much as you can - I paced around the condo until I felt like I could walk outside. Walking will help you recover quicker and will help dispel that gas they pump into you during surgery.
You got this!!!!!