Advice to a newbie

So I just started looking into crypto recently, and bought $15 dollar worth of bitcoin just for a start or for the sake of trying, and tbh idk what to invest in, and I’m scared of putting a big amount maybe I’ll lose it. So what crypto u guys advise me to invest in

I’m trying to educate myself about the crypto thingy but ig I’m not making any progress, I’m a college student so I don’t really have that much budget to invest over $1000, so which crypto is the best to invest in

And yea I tried to invest in bitcoin but even if it booms I won’t profit that much as I only invested $15