Bloomin' heck! It's a polisher, not a velociraptor wielding a chainsaw.
Have a look at a Silver Line polishers if you are just starting up. They are
very cheap, not
too heavy and have variable speeds.
I've always favoured the 3M pads too over the likes of Chemical Guys or Country Lake etc. They also have an easy to use colour coding system where you just can't go wrong if your abit confused.
Take it steady & you'll be fine!