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?
If your outlook is 12 months then i think saving is the best thing to do. The long term perspective for bitcoin is very good in my opinion.
Selling them at current prices is just too low. Holding on to them will make it you more profit by selling them at this 'low price'
But hopefully the price should rise as well. That is another determining factor whether he will earn the profits from his saved coins. I would suggest to divide the money equally into two parts from which one could go for cold storage in to your lucky wallet and another can be re-invested into altcoins which are currently performing well through the market. I know altcoins are not good all the time, but with proper study of market this goal can be achieved. And everyone knows altcoins can give crazy ten to twenty times profit than your normal investments.