Is there a simple to learn CMS ?

My problem: I can't seem to be able to get a hang on any PHP CMS

Basically everytime I try to code a site in an existing CMS I find out that I spend 99% time trying to google out how the CMS works, how a particular thing is done and less time coding. I end up not using any CMS at all and just code my site in Core php .

To give a solid example:
On my vanilla PHP site I'll use a just-works router (say toroweb) , now I know exactly where the classes are, where they are being called, what I have to do to add another page etc
But it seems with a CMS I am just googling trying to find out how each and every thing is designed.

Now I have an idea for a site that whose development I think will really be speeded up if an exisiting CMS is used, instead of trying to implement every goddamn feature myself.

I feel I am doing something wrong in the way I try to learn a CMS. or maybe I am just not using the right CMS.

Can anyone relate? Any tips / suggestions to offer ? Is there any simple CMS that feels 'natural' to learn ? Sorry if this question is vague.

 

Wordpress is pretty nice and with my IDE, PHPStorm, I can get extra hints for different functions as I code. If I need to see how a function is coded I can simply click on it and it will show me the code.

 

I was recently shown October CMS by one of my teachers who is considering teaching it to the senior students

I found it pretty easy understand after looking at the intro video: