Indie game storeFree gamesFun gamesHorror games
Game developmentAssetsComics
SalesBundles
Jobs
Tags

That sounds very cool : )

Have you tried upgrading your project to a newer version of unity, if you do it step by step (e.g.  2017.1 -> 2017.2 -> 2017.3 ... 2019.4) it has less chance to break, but definitely back-up your project before trying to upgrade it.

how much data will it take i mean in mbs or gb i will do that on weekend ok i will do it step by step

Yeah if you don't have fast internet it takes forever, I once had to upgrade a project for almost a month : )