ATM options are really expensive, so you never make 20x with ATM options.
This quote kind of shows your incorrect thinking and maybe why you are having trouble making money with options. No such thing as "really expensive" when all you are doing is comparing premiums. Newbie attitude that you would rather pay $0.50 for an option than $5.00 even though you are most likely going to lose your money. It is a newbie approach to finance and I always thought anyone trading should first learn about fixed income products to truly understand risk and how risk is priced before looking at equities. That is where people learn that a $101 par priced high rated AAA bond is not more expensive than a $20 par priced D rated bond.
Unless you see how wrong your above statement is, then you will have trouble making money or understanding how to make more informed trading decisions.