To me, its much easier to switch to keybord, if u dont use the mouse.
I also suggest changing keybord buttons into the gamepad equivalents, to help consolidate the number of buttons you need.
(Normally I play on controller for MMOs like WoW, but with the built in controller optiosn limiting button configuration and modifier settings, I find it harder to use than most MMOs. Except targeting, which I feel has always been better in XI then XIV.)

ASDW for movement seems like a D pad, so nothing new there. Its the arrow keys I use as a camera that took a bit to get used to, and even more so, QERF for the tab monster/party member, feature that the Dpad had on the controller.
Switched jump to cntrl spacebar, so normal spacebar can be my "X" button equivalent. (Sucks for cutscenes, as it makes a pop up come up every time now)
I then set all my abilities to the num pad, and ALT num pad.
Some lesser used abilities like mounts to the numbers above ASDW. (1-0)
the 6 buttons between the keybord and numpad are commonly used buffs. (insert, home, pageup, delete, end, page down)

all of this takes soem time to get used to, like people have said.

pick a new class, and go level it up for a bit from the lowest level, or go to palace of the dead.
eventually it will get easy.