Currently people only talk about Bitcoin but the price is very high for me to afford investing in it.
This is a Bitcoin forum so obviously the first time people would suggest is Bitcoin, and you can buy as low as only $10 worth Bitcoin, you don't need to buy 1 Bitcoin, in some exchange even less. So there is nothing like you can't afford investing in Bitcoin.
Bought some cryptocurrency like XRP and Bitcoin.
I wouldn't say that XRP is bad because it has been proven to survive issues and problem over the year, but what you need to know is that XRP is centralized those central entity can immediately freeze XRP or just stop supporting XRP at once without considering XRP holder like you, so you need to be cautious. While Bitcoin is decentralized there is no single person could do that.