Is there any specific best time for every altcoin and when it is going well and we should sell ??
how the hell would anyone know the right time to sell? you can sell when you already have a profit, for example you bought and sold when you reached the profit of 300% and the following week the currency increased 700%. see that you would not know that the currency would rise 700%. So there's no way to know the right time to sell.
for example now the price has given you profit 30 % from your capital, i think that is good time to sell your coins.
lots of people are greedy and want profits of 3x or even 6x
The bes time of selling your altcoins is the end of every year . Always in this part of the year altcoin rich ther maximum .
this year everything is different, so be careful with this strategy