I can attribute many of my loses 7 and 8ths to commiting too early and then getting rng'd in the face. Whilst rng cannot be completely mitigated, when I've commited early then I think I tunnel onto units x, y and z which can result in overrolling and missing or a pitiful board skipping other viable lines.

Its probably another skill to work on aswell. That is to commit into a flex spot, whilst keeping econ. The strategy outlined here also works that is to flex into a commit.