If you can hold the investment till now from where you invested then I think you are in for a lot of profit. Crypto currency market is risky and you have to move forward by taking that risk. Always remember that you can only succeed if you take risk. Of course I believe in altcoin and hold altcoin but I always consider ethereum as an altcoin over bitcoin and thinking of moving forward with ethereum. Because I don't want to take too much risk and move forward with any coin.
Most people are impatient when the price of the coins they hold falls. However, with patience, they can enjoy profits from the assets they own. That's why people also always advise to hold, and suggest to invest in bitcoin or ethereum. Because many people believed that the price of these coins would be very high, and now it has been proven. If the OP still has bitcoin, then he has made a profit of approximately 100%.