Welcome to the forum and Gramps.
You can get an assist climbing the learning curve by watching a few Tutorial Videos
The presentation show one way of approaching data entry. But there are multiple ways of doing most things in Gramps. And even more ways when you install addons. (See Roughing in a tree with the pedigree chart gramplets for another approach.) And take advantage of the Gramps clipboard (and/or Collections Clipboard addon, persistent variants of the Clipboard) sooner rather than later.
Ask any questions you like. Most of us have strong opinions but we like to help.