Google Sheets - Pulling Public Data from Social Media

I'm attempting to build a Google Sheets database to showcase publicly available information from social media accounts in order to help a brand grow their online presence. I also understand that due to the limitations of Google Sheets, the values in the cells will not update in real time, instead only updating upon reloading the page. This is acceptable. I've attempted a few different formulas, but I've never had to pull information from a social media website before and I'm unsure of what to do.

The information I'm attempting to track is as follows:

Date of Account Creation
Date of Most Recent Post
Average # of likes per Post
Average # of comments per Post
Highest # of likes on a Post to date
Highest # of comments on a Post to date

Any ideas of where to go from here? Any and all help would be appreciated :P