Big headed advice needed

I think the problem is your opponents don't have the experience to deal with your list. After years of playing against speedy dark eldar, eldar list I have learned to flood the board with my troops and lock them down into close combat but that was years of figuring out and Eldar are still a tough nut to crack. I would keep the normal list and after beating them tell them you would die if they got into close combat with you. A fun list of oddball units that you want to try might be fun. I have a April's fools list I play that is totally random units that I rarely would use in my regular army.