You are short-handed (5 players). With few players it becomes correct to play more hands or a wider range of hands. This indicates that the raiser should play more hands and that you should be playing more hands.

You are playing deep. 165bb vs the UTG(HJ) and potentially 240bb vs the BTN and BB. Given 100bb I think even considering the shorthandedness of the game that there is nothing wrong with folding JTs preflop some of the time, but with the deep stacks calling preflop becomes mandatory.

With you having called BTN and BB are both looking at a decision to call to make a multiway pot. That means suited aces, suited connectors especially become more attractive. An offsuit ace seems like a strange choice though.

On the flop you have to consider that you hit it, but you don't hit it hard. You play JTs to hit straights and flushes and in this case you hit a top pair with a weak kicker. It may yet be best, but you still have 3 opponents to contend with.

I like the flop bet, and I like the flop bet size. Because of the follow-on effect on implied odds when the first person calls a bet you want to make the price high enough to discourage callers so as not to give good odds to drawing hands.

Note that both BTN and BB could have J8 or 86 with the turn completing a straight. AsXs is certainly also a possible holding through the hand.

The turn I don't feel strongly about. With two other people still in the hand it may be prudent to consider what a worst case scenario looks like. (One holding AT and the other holding two spades). I don't think the bet is necessarily wrong, and if you bet I don't think the bet size is necessarily wrong. I don't mind checking either though and being ready to give it up to aggression or squeeze out the second bet on the river.

You don't have a hand that you want to play a big pot with. If the pot grows big you are probably up against something better than you. If people are content to keep the pot small you are more likely to be holding the best hand.

The river bet is almost certainly a mistake. One of the few things that they could still hold that you beat when they call the turn are aces.