quick question from a 6-max noob. . .

Okay, I'm pretty new at this 6max stuff, so I was wondering if you guys could help me with something. I think I'm betting my UI overcards too much. I would say that somewhere in the neighborhood of 75% of the time, when I miss the flop with overcards HU, I'm taking stabs on both the flop and the turn. About 25% of the time, I'll 3-bet the flop with them if I get raised. Would you say this is too much? I'm in the middle of a downswing, and I'm trying to spot some leaks. Do you guys feel I should depend on reads more? Or do you think I should pay closer attention to the board? Or is 75% about right?

I'll try to dig up some hands, but it seems like they would be pretty boring (Hero bets, hero bets, hero check/calls or check/folds).

Happy holidays.