Hi - I'm baffled and would appreciate any and all advice. I have a 14-3
coming from the panel to a box (red/white/black/ground). at the box is a
3-way switch for a hall light, and wires for the second 3-way switch for
the othend of the hall controlling this hall light (14-2 wire).

In the first box (where the 14-3 comes into, I've run 14-2 for a ceiling
light fixture (14-2). I'm looking to put this ceiling fixture on a new
dimmer (I have a 3-way dimmer switch) but for the life of me I can't
figure out how to have this new light fixture wired separately from the
hall 3-ways.

Please help!! thank you!!