If I'm reading your post correctly, you have a 20A breaker on 14 guage
wire. That is a fire hazard. First things first, change the breaker to
15A.
If you have ungrounded wire, you could just put in a 15A GFCI breaker
that will take care of the whole circuit. As far as the fluorescent
lights, I am not sure if it will present a problem. I have my
fluorescent lights on a GFCI breaker and it seems to be OK.
By the way, the washer, dryer and freezer should be on their own
circuits. AT the very least the washer since it uses up the most juice.