Old Plan (failed due to inablity to play steam as much as I wanted):
97% by 31 Mar 21             99% by 31 Jan 22
96% by 31 Oct 20              98% by 31 Jul 21
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95%: 27 Apr 20 (~4 months)                       84%: 27 May 17 (~2.3 months)
94%: 29 Dec 19 (~4 months)                       83%: 18 Mar 17 (~1 months) 
93%: 29 Aug 19 (~4 months)                       82%: 21 Feb 17 (~1 month)
92%: 26 Apr 19 (~3 months)                         81%: 29 Jan 17 (~3 months)
91%: 19 Jan 19 (~4 months)                        80%: 22 Oct 16 (~1 month)
90%: 26 Sep 18 (~5.5 months)                        79%: 18 Sep 16 (~1 month)
89%: 14 Apr 18 (~2 months)                        78%: 12 Aug 16 (~2 months)
88%: 11 Feb 18 (~4 months)                       77%: 16 Jun 16 (~2.5 months)
87%: 14 Oct 17 (~1 month)                         76%: 01 Apr 16 (~2 months)
86%: 10 Sep 17 (~3.5 months)                      75%: 09 Feb 16