I would play it different too! Note it helps to use the forum hand converter so the hand is written out, as it's hard to watch a video and remember all the details.
Preflop
Why only 3x 3bet oop, especially v a 2x open I would go larger. Villain gets too good a price to call. I would go 4x typically.
Flop
You say it's a good flop for Jack's. It is ok, but it hits the 3bet caller pretty well as they will have TT, 99, 88, 98s, T9s, Qjs etc. You will have fewer such combos. Therefore if you are going to bet I would choose a much smaller size. You could check range here though JJ does benefit from a bit of protection and you have the straight draw outs.
Turn
Bad card for your hand but good for range. By betting so big on the flop it's likely most AK, KQ is folded but villain could have KT. I dont really understand the huge bet, are you value betting or
bluffing? You may be pleased that villain folded but he was probably drawing thin anyway, he wasnt folding a better hand here. If you bet smaller you could have got more value from AT, QT, A9 etc