Welcome to the dark side of woodworking. once you're in the vortex, there's no escape
If there is anyway you can, take Mike up on his offer. Being self taught, I can assure you that someone else can point out so many things you COULD be doing better (notice I didn't say you are doing anything wrong?) Bad habits are impossible to break when you don't know you're doing them. A few minutes with some knowledgeable help can make frustration into joy.
Sharp tools, proper sharpening, speed selection, and practice practice practice are some of the key elements to turning.
While any wood can be turned,oak isn't a wood normally recommended for learning but if it is what you got then turn it!
read anything you can find on turning, watch as much video as you can, maybe find a local turning club, some woodworking stores offer classes, - did I mention practice practice practice??
Whatever you do, make sure it stays fun!