Some Serious Website Ranking Issues

[Harishkumar]

Hii Everyone,

I am working on an Angular based website SpideyGames.com Basically, it's a gaming portal having more than hundred games.

The first thing is -

I had done some changes on the website a month ago. But, the changes haven't applied more than 50 games till now. The google is not crawling the website properly. So, today I submitted the games in search console manually.

And the second thing is-
I am tracking my keywords manually on a regular basis. Search console shows that my keywords are on the 3rd and 4th pages. But, when I check them manually by putting them in the google search query. Google doesn't show the keywords.

The last thing is -

Some of my keywords are on the 2nd and 3rd pages like when we type mobile games online my website show on the second page. But after some time when I check it again. It does not show till 10th page.

Does anyone have any idea why Google is not crawling my website?

and

What is happening with the keywords and search console?

Any answer would be appreciated.