There are quite a few tips you should know and note down to play Coin Master professionally (without any losses). Those are listed below.
Save up your spins from the start of the game
Try not to hoard your gold
Keep your shield and pet active
Keep an eye on the Coin Master page on Facebook
Do not miss out on daily login rewards
Don’t forget to take the daily bonus
Purchase chests every time you jump up to a new village-level