Looking to gain more experience and learn new things

Okay so I've used Debian for quite a while now (2-3 years) on VPS servers, and today I took a big step and purchased a dedi server at hetzner. It's going to be used for everything, such as seedbox, irc, webserver and hosting things.

Aside from his, I want to learn. Is there any way I can create a VPS inside my dedi and experiment on that, and whenever I want to I can just delete it? I should be able to SSH into it just like a real server and config everything... I'm not sure if there's another way, but if so, I'd really like to know. I'm very eager to start learning.

Thanks, Dennis