NL10 JJ in 3bet Pot

Hello,

I had serious problems with this hand. I often have problems in these spots.

To the Hand:
Preflop: Should I've 4bet here? Villain seemed to be a fish(31/19) and had a 3bet frequeincy of 5%. I didn't want to isolate myself against a better range.

My question is about the turn. What do I do here in position against the double barrel? Should I call here, or shove maybe? And if I should call, what do I do when he shoves allin on the river if a brick comes (I assume anything below a Ten)

Here the hand:

Pacific Poker - $0.10 NL (6 max) - Holdem - 5 players
Hand converted by PokerTracker 4

SB: 100 BB
BB: 76 BB
UTG: 112.4 BB
Hero (CO): 100 BB
BTN: 123.5 BB

SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has J♣ J♠

fold, Hero raises to 2.5 BB, fold, fold, BB raises to 11 BB, Hero calls 8.5 BB

Flop: (22.5 BB, 2 players) 9♦ 5♣ 3♥
BB bets 11.2 BB, Hero calls 11.2 BB

Turn: (44.9 BB, 2 players) 9♣
BB bets 22.4 BB, Hero?

I would appreciate help.