You can, or you could sign up to the Avid user forums. There on the Media Composer – PC forum you will find 200+ very useful tutorials, and links to other training threads. The tutorials were created to assist users migrating from Pinnacle products, so they assume absolutely no Avid knowledge.
If you are an experienced FCP editor you already know the basics. As an Avid assistant you will almost certainly need to concentrate on sound syncing, Avid’s media management and the uses of AMA. There are other things you will need to get your head around, but those are probably good starters.
The one thing you must not do is try and force Avid to be Final Cut Pro. It isn’t, and if you attempt to drive it that way it will only slow you down.