Can I teach myself how to do anything like wax ups, impressions, etc before dental school? Or is it a bad idea…

Obviously I’m not trying to do DIY ortho or actually operate on someone, but are there cheap materials or modeling things that I can start practicing before I start school? My boss just gave me her old face bow and articulator and it would be really cool if I could actually start using it to get a feel for what to expect in school. Other suggestions?