I need to ask how to increase earnings

I am a gaming youtuber have 3.8k subs, monetized but the thing is I can see in my studio app everyday only 2-2 $ are getting increased so to make 100 $ it takes me 45 days. I don't know why it is too slow I get daily 1k views as per yt analytics but only 2 dollars my rpm show 7$ per 1k.

Also after having this many 3.8 k subs my videos hardly cross 500 views.

I need some ideas for my channel to increase earnings.

One more thing I have faceless channel I just keep captions on my video. I upload efootball mobile related content.