there ya go.

what everyone else said. i never regret a ride. i always regret not riding.

just dress for it.
just make sure to layer and protect your hands feet and face b/c these are the most vulnerable on a winter bike ride, and you'll be fine.
your body will generate enough heat with reasonable layers - so that's the last thing to worry about. i usually have 1 bottom layer and 2-3 top layers.
then i'm sure to wear a few sock layers, face layers and hand layers - and carry extras JIC the afternoon commute is different than the morning.

best of luck and please report back OP