Exactly, when you get close, any small change will bring impact.
To try to cheer you up - in September Uscis will finish processing work visas, I'm not familiar too much, but as it's said in one FB group it's absolute priority for them because they just to have to finish them before the deadline or they can get sued. When it's done, they will have far more resources to deal with other categories. With everything I saw in this last 13 months concerning K1 visas, I do believe that us, the july 2021 filers will have it worst.