In 2018 I think that not, but in 2019 or one year later, I think it's possible. XRP has very good thoughts which I like and I invested last week big amount too. So I hope with you.
Ripple will not make a millionaire out of anyone. With so much supply, you have to have a lot of money to do it. It is not able to grow so much. If it increases by 2x then you need about 500k $ or more for investments. I think that with this amount, you can invest better than in xrp.
Last year the Ripple prices jumped so high on several fronts, and as bitcoin prices corrected, ripple prices also experienced the same thing, as did other altcoins like ETH, Dash, LTC, etc. I think that when the bitcoin price returns recover, the price of xrp may also go back up, and make you rich again...