differences between Acrobat premium & Acrobat pro?

I just wasted a 7 day free trial trying out Acrobate Premium, most of that time pulling my hair out not getting any instructions on how to create another or delete the existing only one and although I did explore, it was way beyond my first intro to this type of technology so can someone tell me what is the difference is between the Pro and Premium? I don't want to get frustrated again trying this super duper...I'll never create the time to study/ learn all the things to do with this complex program especially when comparing how less likely I'll be using it because it is so complex. Rather, if the pro can suffice, I wouldn't mind subscribing monthly to use it ... Please help I'm much too old to take time to figure out all that the premium services offerred during the 7 day free trail , yet, too apprehensive to subscribe to what might be with the Pro being so far stripped down to actually meet any of occassional usage . The difference in price is also being taken into what I consider to be unreasonable in the meager times I most likely use it... Thus my query. Thanks for any comparisons you can provide.