My IPod 5th Generation is acting up.

It has happened before and it was back to normal in a day. Now I'm going on 3 days and hope isn't around the corner. I'm not an expert in technology so i didn't worry about ICloud until a while ago. I couldn't back my IPod up so I just let it go. Now I'm really starting to worry on if I broke or jailbreaked it on accident. It only has a scratch on the screen and a tiny one by the home button and I took it to the pool yesterday but and I don't know if I got water in it. I searched up solutions but restoring my settings made the problem worse and I can't log back into my email and ITunes and other things like that. My device also deleted a bunch of my photos and crashes apps. When I finally manage to get into an app it glitches. The first time this happened it kept resetting. Now my IPod freezes for a while then resets. It also reset my wallpaper. I'm terrified if I broke my IPod because my IPod 4th Generation didn't survive. I don't know if I should take it in to a store to have it repaired or just leave well enough alone. Any ideas?