If I was making wudo not properly and I didn't know that does my wudo still count
So i was watching some videos on how to perform wudu properly and I seem to be doing every right in the video until they said you need to rinse your nose 3 times and wash you face 3 times, I just been doing these two things 1 time. is this just a sunnah or do i have to do that, and if i do are my wudo still count even if i didnt know