How long does it take to get everything in Forsaken?

All of the available skins, and all of the achievements, to “100%” Forsaken.

After 15 days so far, I have every single killer skin except for White Pumpkin, as well as 007n7 and Builderman, and atleast half the skins for everyone else, but none of the Golden skins. I do generators a lot so I’ll probably ”100%” the game faster than most people, and I’m missing 16 achievements, 5 being MS4 achievements and 2 being based on real world time, a couple of them are free though.

But pretending I have the Friday the 13th and March 18th achievements, how much longer do you think it would take to get everything in Forsaken? I do know that I myself am not a good measuring tool for this, especially since I do the generators as much as I can most of the time. But I’m just curious for estimates, if I had to guess myself, I’d say like 25 days? What do you guys think though?