The thought process you are using here is flawed. It's what leads players to be weak-tight. Yes, you might be up against 79, QQ, 1010, 88 or J9. But you also might be up against Q10, AQ, AJ, KK, AA, any flush draw... You need to put your opponents on a range, determine your equity against that range, and see if you should continue. What you are doing here is seeing if your opponent might have you beat, possibly, in worst-case scenario. Your opponent will almost always have at least 1 hand that has you beat. You can't worry about that. Are you seriously only going to reraise on the turn/river with the nuts? You'd be losing a ton of value from your hands if you played that way. You'd also be far too easy to read and exploit as a player.

I'm just a fellow 25nl player without a ton of experience, but you've got some of the best and most respected players on ftr giving you advice. Listen to it.