Where are you buying XRP and why?

New to this all, just bought like 50 XRP and plan on buying more.

Long (and pretty funny) story short, a lady I spoke to on the phone about my deceased father she apparently knew told me to buy XRP until it reaches $10 then hold it for a few years, so I got on Robinhood and purchased some immediately.

I texted her after and she said that it was cool that I got in, but advised I get my own wallet and trade through that or something. She said something about how Robinhood is only a middleman and may hold your funds at their discretion or something, therefore I’m not in full control.

Now I’m scared my pipe dream of it getting big comes true but when it’s time to cash out, Robinhood won’t let me for whatever reason until it crashes.

Anyone got any advice for a newcomer? Am I overthinking it and Robinhood is good enough for me to use or is it worth trekking uncharted territory for these more secure wallets that give me more freedom? Thanks all.