The only way to "do meditation wrong" is not to do it at all. Truth.
Some days my meditation is blissful and beautiful. Other days it isn't! I do it anyway. Lately my feline friend has been wanting to sit on my lap. There was a time when I wouldn't allow her to. Why? Because someone told me it was "wrong". Now I laugh and say: "of course, sit with me and tell me your wisdom"!!! And she does :)