Are you trying to get your profile, a specific repository, or a Pages site ranked higher? There's lots of information out there for how to get your page ranked higher in Google, but the general answer is that you need to produce quality content.
Yes, that is right. Can you login into my account and rank it high on Google's first page, please? How long will it take to go on Google's first page, please?
That's not how Google's PageRank system works. We can't impact how high your page ranks in Google.
Can you optimize my GitHub profile by logging into my GitHub, please? Also, how do I find my GitHub via Google search, please? Should I submit my GitHub to Google Search Console, please?