Sorry, although I'm intrigued by bitcoin and its potential, I'm frustrated because I'm having trouble understanding some of the stuff around it.
are you planning only to buy bitcoin?
If that was your only reasons then find a local exchange available in your country .this will make it easier for you to understand then after you learn how to buy it you next to learn is how to buy other altcoin . Googling is make it is easier for you to understand but always start with the basics.