Divide your cash in three equal parts, use two parts to buy two stocks, reserve the other part to average down in one of the two stocks if really necessary, to catch a MOMO stock to make a quick buck, or as a reserve in case something goes wrong with one of the two stocks, to recover the account.
Do not buy more then $500 - $1,000 in triple or double 0 stocks, so if you lose all the money, the percentage will be 100%, but, you only lost $1,000, in one account with $10,000, it's perfectly recoverable in the next trade.