...I suggest selling you XRP and moving to other altcoins. There you can get a chance to double or get more profit.
And where is the guarantee that the coin that he will buy by selling XRP will not fall in price? I think that everyone has already had such a thing that he sells a coin, and its price then flies to the moon. That's exactly what can happen with the price of XRP, which has long been ready for a bull run.