do you lose all the exploring you had, kinda like bounties, if you die without turning in bounties you lose it all
You lose all the data, yes. Be careful.
Yup, I just lost all my exploration data while flying a hauler from my first 1K trip. That thing was a magnet for interdictions and with D-modules to reduce weight there was little chance of escaping unscathed. And on the fringes of the populated area there is always a ship waitin by the star.
Also don't navigate the Galaxy map while being close to a star, I closed the map and I was greeted by burnt debris of my ship flying around. Next exploration trip I am taking my Cobra.
so is it suicidal to go without shields considering the amount of pirates out there?
If it was easy, it wouldn't be a challenge and wouldn't be any fun.