Keep it no matter what, never sell it, it's a good coin in the long run

Hi everyone, im new in this cripto world, i know a couple thing about holding and trading, and i decided to give it a try.
I heard about $XRP from my jounger brother, and he told me to invest in it like 6m ago, and i was so sceptic and i didn't do anything, i think in that time XRP was like 0,5$ and now its more than 2.2$.
So i missed, badly.
I have some extra cash that i want just to save, i have enough money for life, and have a couple bucks left to save it, my ide was to save it here, to hold it for like year or two, and to add a little bit more whenever im capable of doing it, can someone who is longer than me in this cripto world tell me is this smart or stupid idea, did i need to change something, i invested like month ago and im basicali 0+ but thats not a problem im just wondering is this good or bad ide, and also sorry for bad grammar im not nativ.
Have safe and wonderful day you all!