I don't see what difference it makes whether I look or not, tbh.
I play a set time, usually 2 hours, so number of hands is irrelevant.
I sometimes have HEM2 "Active Session" open, sometimes I don't.
If I make decisions based on whether I'm ahead or behind in a session, I'm not aware of it. <== maybe that's a leak.
I like having the active session tab open because I can easily find and mark hands there for review, even if I'm too busy to do it at the moment.
I do look at the popup on the hero stats to see if a table is unproductive, and if I'm down a bunch, or if I don't like the players within two positions left or right, I sit out the next BB, drop the table and open another.
I *think* I make each bet / fold decision based on:
--Cards compared to prior action & position (preflop)
--Goals for the bet -- value bet / bluff / drawing hand (postflop)
--Stack size (for that table only) -- I might loosen up &/or be more aggressive if I'm deep relative to the other players in the hand.
I recently took a failing stab at NL 50, and got spanked, so I'm back to basics for a couple of months to practice.