One adult student of mine, who knew nothing about Excel, beyond needing to list a skill level on a job application last week, has just graduated to the Intermediate level, after 5 hours of instruction that was customized to her pace and style of learning.
So if you wish to finally learn Excel, with lessons customized to your pace and style of learning, then it would be my pleasure to teach you.
In computer skills I also teach Windows, Word, PowerPoint, Publisher, Access, and VBA macros.