If you're playing low stakes, you should never actually get caught bluffing. By the river (which is where youre going to get "caught bluffing") you should have a hand with at least some showdown value which isnt considered a
bluff. IMHO the only real bluffing that you should be doing consistently is the Cbet. If you find you have to bluff BIG at the pot on the river, then you have probably played your hand far beyond its strength/ worth.
Honestly never ever bluff the fish at the micros. You can maybe try double barrelling a reg who is going to give more credit to your bets and is worried about his winrate, but that's about it.
Good luck on the multi tabling,
If you are planning to take poker seriously then I strongly suggest you invest in Poker Tracker 3 or Holdem Manager. You cant multi table effectively without one or the other. You will earn the cost back in a month at the most.