That's the wonderful thing about nursing there are so many opportunities. Don't panic. Try something that seems interesting. If you don't like it you can always change. You need to give each job at least a year or so to fully understand if you like it or not. There is no such thing as being "boxed in". Explore ALL that nursing has.
I've worked in adult and neonatal ICU, dialysis, and home care. I saw acute and chronically ill, adults and children, in and out of the hospital. It was all wonderful. Good Luck