Great question — answering as the UphillTech team:
The switch drawing is for 4-way switches - 2 screws on each side plus a ground screw. But based on your description and what I can see of the actual pictures, you have simple single-pole switches. Based on that, the previous installer used backstabs and loops instead of pigtails and wire nuts. Incoming Hot Replace B2 with two separate pigtails, one to each switch Connect the two pigtails and B1 to the wire nut. If the nut is not big enough or seems worn out in any way, use a new wire nut. Switched Hot B5 = one light B3 = the other light or the fan B4 = the other light or the fan You should be able to separate B3 and B4 to use on two separate switches. In fact, you could even put in a triple...
Full answer by manassehkatz-Moving 2 Codidact: https://diy.stackexchange.com/a/270528 (CC BY-SA 4.0).
Need it done for your business? UphillTech.