I didnโt write about it at the time because I was too busy with other things, but I think the best overall film performance of 2018 was Toni Colette in Hereditary.
It was in a horror movie, so itโd never be recognized by any awards bodies or anything like that, but Colette is outstanding as the self-tormented woman attempting to prevent a recurrence of the sins of the pastโฆand failing.
The movie itself is good but her performance is perfect.