Hand 1
Don't flat K9s to an utg open and definitely don't flat a 3-bet with it. And don't draw to non-nut hands, like 2nf on a paired board. These things are all -EV and/or have alot of reverse implied odds.

Also, calling a 3-bet and a c-bet with 44 unimproved is a losing play.

Hand 2
b/f > c/c ott. Check out this post iowaskinsfan post on why b/f > c/c

When you 'check to get value', you're really playing your hand as a bluff-catcher, which is fine if villain is bluffy, but you said villain was tight. So I don't like the river call. You're putting three postflop bets into the pot with 2pwk, that's not good.

Also, it's natural but wrong to think that micro players are making alot of big adjustments to your play. They almost never are. When the tight guy starts betting, especially on the turn and river, he has it.

Hand 3
This is fine except for the turn. That's not a good scare card, so don't 2barrel there.

Hand 4
is fine imo. The middle and bottom cards pairing do pull some of his flop donking range ahead of you, but tptk is still good here alot because he can have worse 9s.