I don't know if the car I have has ever been detailed. Just taken to the auto carwash places. It was given to me, a 98 Honda Accord. Anyway, trying to learn and didn't buy the clay. I bought Meguiars Ultimate Compound and buffed it in and then wiped it off. The paint was super smooth. Then I put cleaner wax on it because the product said it was polish and wax (I thought). Did I ruin my paint? Is the clay absolutely necessary? Was I wrong to use the compound? Thanks.