How to get more turns
There are many, many, many ways to get more turns in SL. Of course those ways only give you a slight chance of getting more turns, but why not try them. SL is not a game where you get unlimited turns and can play all day, you are forced to search a bit if you want to have more turns. There are shops like Sichae's Apple Shop or Saucy's Kitchen where you can buy apple/soup which will grant you one of many possibilities. There are a dozen shops/stores in SL where you can buy something for a chance of more turns. WARNING: You could LOSE turns from using these shops.
The other and most obvious way to get more turns is just waiting for a new day. A new day happens 3 times per real day, every 8 hours. At the new day you will become regain full turns.