Right now i trying to mining a lot of coins, i thinking its mabey its good to save the coins like 6-12 mdr before selling it.
Can orther explain about its a good point else about the risk its to high to lose to lot on it?
I don't really understand your question with a lot of coins you are saying but the best opinion that i will be saying to you is try just to keep that coin if you have trust that coin will increase price in the near future don't sell it now instead keep holding and wait for the right time.