So I haven't had a real lucid (besides that two-second accidental WILD) and I haven't been performing reality checks in my dreams (i know.. shame on me)

but i found out just now of a reality check technique where you check yourself in the mirror and see if your hair or clothes look strange.

yet, in a most recent false awakening dream, i REMEMBER looking at myself in the mirror and commenting how my hair is so long, but in REAL LIFE i cut my long hair over two weeks ago! i should have known that it was a dream just then!

did i do something wrong, or should i just keep doing reality checks in real life?