Turn I'd be folding once raised, I think we can check back here and get a free card, the 3 doesn't change much and we're not getting too many hands to fold on the turn that called the river imo.

No you dont have the correct odds to call. But you can manipulate this. For sure you want to see all the cards when holding a hand like this. So either we check back flop. Check back turn, or we pot the turn( you get the odds to call the rest).

I like the double barrel here and would call the turn as we're not getting direct odds to call but we probably make more money when we hit the river. I doubt many of our opponents are playing a flush draw this was, so our outs should be clean.

If we're raising hands like this pre flop (as we should be) we absolutely need to be playing them aggressively post flop most of the time when we flop pretty well.

Sure, it sucks when we get raised on the turn as we're likely to be up against a strong holding but more often, we're going to be up against a one pair type hand that we can put under huge pressure, or even a hand like KJ/J9 that will call flop/turn and then fold when we empty the clip on the river.