Unless you did the VHF a very long time ago (pre-1980), then it must have been for the IR.
One good trick, IMHO, is not to learn "dot dash" but "di da". That way, what you learn sounds like what you hear. Some of us wacky amateurs have brief conversations saying didididi di didadidi didadidi dadada and the like. That'll work to quite surprising speeds. Saying dot dot dot dot etc won't.
Yes, I know it's sad, but at my age what else is there?
