To heal your character, you can either go to the temple (in the "battle" menu at the top, under "battle"), or you can buy potions in one of the shops (sorry, can't remember which one it is). Potions can only be used in battle, I think...
Anyway, hope you will have plenty of fun with us!
_________________
On semi-hiatus all the time during school year.
I'll reply to post whenever I can.
PM me if you need a quick answer.