I'd say keep your head down, study hard, and don't try to wow anyone in flight school with your prior enlisted time. There will come a time when it will make a difference, but it won't mean much in the VT's, and nobody really cares either way. You may have some military life guidance to provide to your fellow ENSry, but tracom life is so seperated from things like leadership, sailors, etc that most of it will probably be irrelevant for a couple years. That being said, you haven't gotten to the place you are in by not being a hard-charger, so make sure that your attitude while in the tracom reflects that. I saw priors whine about things being different, not like the fleet, not like their last command, etc etc etc, and trust me when I say that this is counter-productive. It is what it is, and it won't be the same, so just know that going into it. I think it is hard for guys like you who have a whole bunch of experience to go from being senior petty officers with a lot of respect and responsibility, right back down to the bottom of the totem pole as a new ENS with no experience on the flying side of the house. If you can avoid being bitter about that, I think you will have won most of the battle.
I will caveat everything I say above with the fact that I'm just another JO, who bases my advice solely on things I have seen in the last 4 years, so there are others who are more qualified to talk to this (especially guys here with prior experience). But it is my take on things anyway.