First of all I'd like to state that except for bitcoin I do not hold any significant amount of the coins OP has invested in, so I'm not biased at all FYI. It's very hard to tell if you will be able to reach your goal with the current altcoin picks and the amount invested. The current portfolio looks an awful lot like a standard slightly diversified portfolio and contains coins that already reached a lot of their potential (this diminishes the chance of 10-20x gains on your investment). Reaching your $1M with a 'mere' $50 grand invested certainly is possible but you will have to step up your game and become a  little bit more opportunistic. This can be done by looking for low cap coins with 10-20x potential in the near future. Only time will tell if your current portfolio will seal the deal.