I say play 'em when the time is right. This is not a starting hand problem.

As ripp implies, it's a "what are LSCs (little suited connectors) good for?" Flushes. Straights if you really know your way around. Not trips -- at least not for many chips Not pairs. Maybe two pairs. Definitely not "three pair" -- which you know and made it an easy if painful river fold.

I like to think I'd immediately go all-in with the 2pair. You want one caller, and here are the types who'll call

people who think you're bluffing (overcards) - you're a 90% fav
TPTK: you're 69%
overpair: 71%
flush draw: 56%
top pair w/flush draw: 48% -- coinflip, you're a tiny dog
sets (9s unlikely w/no PF raise) -- 90% dog. If you've got a strategy for beating sets, I'd love to hear it.

In short, you're way way ahead, but any card that comes out will likely hurt you. End it if you can.