[HELP]Is there a way to get my channel MONETIZED ?

I managed to get almost 15K subs on my channel and now I deleted every video to start over and maybe get monetized, but I need ideas for content that's acceptable for monetisation because my last videos weren't original at all.
Did any of you ever succeeded in monetizing your channels without using your own content… Because apparently video compilations are not to be accepted after the review.

Another question : Is gaming or gaming highlights accepted for monetisation ?