also, reading your analysis you'll probably be a better player than eupho in 5 to 6 days.

The turn comes with experience. You get a feel for how opponents react to your turn bets and feel a lot more comfortable. I would be for value and be confident when called. The turn is like the doorway to actual poker, not much is written on turn/river play because its just an extension of great flop play. 2 changes nothing but opponents outlook on the hand because he only has the river left to catch. He'll call with just about any J in his range among other things which you beat. You're betting for value and should be happy to throw a slice of your chips in the pot.