Okay, am I not able to have more than one characters? Because I had a sorta old one, and then I started a new one and it deleted my old one. Is that just an overwrite fail? Or can I only have one?

it should have let you create as many charachters as you want.i dont think you have saved it correctly?

perhaps you should make up a second profile on ur ps3 or turn off autosave then when you save your new charachter its you who decides what slot to copy over or just creat a new slot

Since you can't name or organize your saves, multiple characters are tricky to do. Especially if you use Autosaves. As suggested, a different profile is one way if you are switching between them often. Otherwise, just be real careful what save slots you use.

One thing is you can do is always have each character looking at a certain type of thing when you save them before switching, like a certain plant or shrine or whatever you will remember. Then you can at least look at the screen shot to help figure out what character is what.

http://www.gamesas.com/topic/1327250-creating-a-new-game-erases-your-previous-saves