Read back to the top of this page. Robinhood doesn't own any crypto so they can't assign you keys = if you buy on robinhood, you don't own any crypto. You own an IOU from a shady brokerage.
I really like XRP and the use case for it, but it's a one trick pony. I've been screaming buy on here since about New Years when this thing was hanging out at $0.20, but I only see it at $5-$10 in the next 1-3 years because of the limited use. There are over 6,000 coins currently listed and 65% of them are on the Ethereum network. That makes ETH a 4,000 trick pony. Not to mention it's the only way of buying most alt coins on places like Uniswap.
ETH is being purposely deflated for the good of ETH because of the fee structure. The way the fees are currently set, it becomes useless at about $3,500. The creators and big money in the coin know that to be the case and are selling off to keep the price down just enough for people to see gains and stay in but to also buy time. The EIP 1559 gets pushed out later this summer and not only will it fix the fee problem, but it will fix the problem by burning ETH with every transaction (this takes fixing the infinite supply problem one step further by also driving supply down.) If you look at the weekly chart from 2017 when BTC was at the same price, it lines up almost perfectly. All the evidence is there that ETH is a $20,000+ coin by the end of the year and will follow BTC very closely after the improvement is rolled out later this summer (hopefully without the year long accumulation stages that BTC had waiting for halving.)