Float deprivation tank

Ive been struggling a lot in my body physically (Also plan on going to a chiropractor too). Which I'm used to, but as of late it's been worse. So I started looking into what all my options were. I had heard of the deprivation tanks and thought it might be a good thing for me to try considering my mind is always going and I need something to relax me. I just booked my appointment for an hour sesion. I'm honestly a bit nervous just because I'm not sure how I'll react to it. Has anyone else gone and tried this and if so was it a good or bad experience? Any tip to help ease me into this would be greatly appreciated!