Sound very normal and very familiar to me. Don't worry. There's a reason for a PPL course being 45 hours - most people take even more than that.
Re item 5: The PTT button is sometimes called the brain disconnect button... What helped me a lot is getting a (second-hand) scanner that did airband, and spending a few hours (actually more than a few to be honest) just listening to get a feel for the speed, phraseology and such.