Usually I am the one who is ahead when the most of the money goes in. But these 2 hands in the last 2 days, I was the one who rivered the villain and I was behind when the major of the money goes in. I know that I got lucky but could I have played these 2 hands any different. Please advise.

please rate my play on these 2 hands on a scale of 1-10...1 being sucky, 10 being good.

Game : $300NL holdem in B&M, Blinds are 2-5

Hand 1: Hero has 500$ behind. Villain has about 460$ behind. Villain is tight and very aggressive.
Hero has Ah-Kh UTG.

Preflop: Hero raises 30 from UTG, MP2 calls, villain calls from button.
Flop (90): Ks-7c-10c
Hero bets 50, Villain calls I bet so little on the flop to represent QQ or JJ so that if villain has a K he can raise on the flop so I can come over the top. Otherwise I usually bet between 80-100 on that flop.

Turn(190): Ks-7s-10h-7h
Hero bets 100, Villain raises to 380.
pocket 10 is a real possiblity here. I doubt he would have a 7 unless its pocket 7. if he has 7-7 he would let me hang more with a rope. maybe he has a weaker king and he sensed weakness in my bet. think about it and think about it and then finally call

River(950): Ks-7s-10h-7h-Kc
ship it!!

Question 1: I only gave credit to villain for pocket 10s. not trip 7s. He called 30 raise preflop and a 50$ bet on the flop. but i felt there was a chance he could be raising a weaker king because of my bets on the flop and turn. i guess looking for a reason to make a bad call...he he
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Hand 2: Villain 1 is very tricky player. Cant check to him in big pots as he moves in or bets big. I play with him regularly and he thinks i am a solid player but overplay AK. Villain 2 is very loose and calls any raise up to 40$ with any cards to try to flop good and stack overpairs.

Hero is Qc-Qs UTG. Hero has 300 behind and has yet to play a hand. Villain 2 has 1 grand behind. Villain 1 has about 400 behind

Preflop: hero raises 30 from UTG, 5 callers (villain 1 is MP3, Villain 2 is sb)
Flop(150): Js-Jc-5s
Hero bets 200$, Villain 1 thinks and thinks and calls, Villain 2 calls quick.

Turn(750): Js-Jc-5s-3s
Villain 2 bets all in, Hero calls for 70 all in, Villain 1 calls and all in.

River: Js-Jc-5s-3s-2s

Villain 2 shows 9h-5h, Villain 1 shows 7c-7s

Hero wins main pot, villain 2 wins side pot after villain 1 mucks his 7 high flush by mistake.

Question 2: the pot had 150 in the middle and with that many callers preflop, i want to take it down. dont want someone drawing to flush or overcard. AK is very likely here. thats why i overbet the pot. I figured if someone had the 5 oh well. was the play too reckless on the flop ?