I've been bleeding a lot of money just because I never believe my opponent when he raises big and I have a decent hand( top pair, top kicker). It turns out most times they have trips or better.
You don't have to marry the damn things, especially in no-limit. In no-limit TPTK tends to win small pots and lose big ones. Is your opponent going to commit a big percentage to the pot with a hand that can't beat TPTK? Unless he's an absolute fish, he's not calling a (K,rag,rag-rainbow) board with (K,Q-o) if he meets any resistance. It's not like fixed limit where he loses a few bets if he runs into Big Slick here. You bet; he folds. If he has two pair or better, he raises, or he sets a trap he'll spring on the turn or river.
Should I just fold my top pair and wait for a better hand when my opponent goes all in on a board where he could only represent trips or 2 pairs?( no flush or straight draw), even though he might be bluffing?
It depends, it depends, it depends. If the nittiest player at the table, you know that guy who hasn't played a single hand in eight orbits wakes up like that, then GTFO and never look back. If it's a rec-fish, someone who's neither terrible not really very good, then you'd also consider getting out of his way. When a rec-fish goes out of his way to bet big, he's usually there. It's rare to find one who can slam a stack in on a pure bluff. It just never occurs to them because they never think ahead, they never consider the story they're telling. Also, at the micros, there are a lot of self-appointed honesty inspectors who'll look you up to "keep you honest" if they have any piece of the board, so why risk it?
It's also a question of SPR. If your SPR is 3 : 1 or less, TPTK is a stack-off, and you play like it's fixed limit. SPRs of 4-6 : 1 are iffy, and anything deeper means you play the TPTK carefully and slowly, and take it to showdown as cheaply as possible. If your vill won't co-operate, GTFO! If he bluffs you, Yeay! for him. Show me a player who can't be bluffed and I'll show you a 'station. How well do
they do? That's what makes them the fish they are.
Last night at 10nl, I popped a short handed table with (A,9-o) out of the #1 hole. Fish calls behind. I lead out on a (J,9,2) board with two spades for 1/2 pot, fish calls. Turn isn't a spade, and doesn't complete any reasonable straights either. Lead out another 1/2 potter, fish calls. The riv is another brick. Check it to the fish in case he has a weak jack he just can't turn loose. He bangs it all-in. I call off half the remaining stack, and he shows a (T,9) off with a gutter ball draw that missed. Stackless, he leaves.
He's repping a good jack, but I knew he was FoS. Sometimes, you just get a feel for these things. That comes with experience. Of course, it's more than just a gut reaction. He'd been there awhile, I'd seen how he played, I had him pegged for a total fish so gut reactions are the result of preparation and observation, nothing the least bit mystical about it, though your more superstitious opponents will think otherwise.