Before you determine the hybridization of an atom, make sure you can determine the steric # of an atom.

Steric # is the number of "things" bonded to an atom (atoms bonded + lone pairs) *** double bonds do NOT count as 2 ***

Hybridization is either SP3, SP2, or SP and you can use the shortcut Steric # -1 to get the hybridization .... however you should really understand how to get the answer without the shortcut which I cover in the video.