New to CPA..Need advice

To be frank i know nothing about CPA.

I have a wordpress website which is in Game niche. Content on the website is not top quality.
It gets around 500 visitors/day from Google search from multiple keywords.
Most of the traffic is from top tier countries(USA, UK etc).
Most of them use mobile to visit my website.
Presently i am using Adsense on the website.

I have a youtube channel from 2014.
Which has 2.21K subscribers.
I have hundreds of videos on my channel.
Till now i have around 3000 hours of videos watch time.
I don't earn anything from my youtube channel.

Can i use CPA to my website and Youtube channel?
Basically i know nothing acout CPA.

Does CPa works for my website and Videos?
Can you advice how to get started etc..?

what are the videos about ? tech ? gaming ? etc
sign up for a network that has those offers, then put the link in the description and also mention about the link in the start of the video if you can so that the viewers can click and you can get paid

Website is related to gaming.
I tried registering at Ogads.
They rejected.

I sent them an email but din't got any reply from them.

try pwngames
see if they accept you, or IQU
they mostly deal with gaming offers

Thanks..I will try them