Played wrongly in mahjong??

I played mahjong again with my siblings. This time I'm not drunk but I too blur already until I played the wrong tiles to win. It suppose to be 7 pairs but I had 4 pairs, 1 4 matching tiles as in 1 group of same tiles and a 3 of a kind ( something like that la) and I thought it is 7 pairs because I counted that 4 same group tiles. But actually I won wrongly. Haiz.. So consider as losing lor.. And that causes all 4 of us laugh like crazy people.. And they say want to tell mummy and daddy so that they can laugh at me again.. Haiz...