In regards to a crypto trading simulator to learn on try www.Niffler.co which is about to launch and built for exactly your needs as a newbie and/or experienced trader. Best part is, it's FREE.

More info:

Learn Crypto Trading Without The Risk
Niffler.co lets you practice SIMULATED crypto trading without risking your capital. Once you get good at it, earn money by teaching others!

Think of it as Coinbase meets Patreon without the risk!

www.niffler.co