Feeling you've got something to prove (whether to yourself, a bunch of frat bros or the shroom avatar of Terrence McKenna) is probably one of the worst reasons to take a high dose of any drug.
At times psychonautics will almost devolve into a sort of dicksizing contest on who can handle the most heroic of doses... IMO you're showing more respect to these amazing substances if you remember that something can always go wrong, and approach dosing with a certain degree of humility - that includes acknowledging that any statements by supernatural entities may very likely have been your own mind talking to itself. While drug-fueled "epiphanies" can provide valuable inspiration once rationally analyzed and processed, and the psychedelic experience in general can have amazing therapeutic potential, you're not making a good case for them if you end up being one of the people who suffer from months of derealization and depersonalization following a bad trip that got out of hand.
Going from 2-2.4 to a whopping 5 grams is a pretty hefty increase. At 2.4 grams the headspace should still be manageable enough for you to follow a barely coherent train of thought. At 5 grams, it's thought-loop-alooza. I second PsychaStevic's suggestion of preferably trying ~3g for your next time, then ~4 after that, and only then attempting the full 5 grams.