If you’ll run just two accounts per social platform, you can keep using your home IP and not use any scrapers. For Instagram though since you will need proxies there, you will need a proxy for the scrapers (the main and scrapers cannot run on the same IP/proxy).
Just make sure that you do not access those accounts on another device/browser/or even on their apps while you are doing actions with them on Jarvee.
Scrapers are only for IG. We recommend starting with 2 - 3 scrapers for each main account. The need to add more scrapers depends on the number of tools you are running and the number of filters you use on the tools.