as of now the market sentiments hold key role in manipulation of buyers and sellers minds.
if you don't know anything about crypto i strongly advise you to keenly watch community post and comments on specific coins.
if the community has the confidence on coin to pump, buy it, if it loses confidence sell it. it may sound crazy but whales manipulate the community.
if you bought any coin and suddenly the market goes berserk down. don't panic.
know that patience is the key.
A brilliant spot trader is the one who keeps silence when there is dump and buy more coins at the dip for reducing the average price of the coin.
don't ever sell your coins for loss. loose time not the money.