Something no-one mentioned is.. well have you already tasted some of these tabs to ensure that they're LSD?
If they're one of the NBOMe series substances for example and each hit is 1mg+ you'll probably end up in hospital.. or dead.
Although in the past there were certainly other substances going around as LSD that weren't LSD, generally taking too high a dose with them resulted in a prolonged nasty experience that you'd later regret - but not with you laying in a hospital bed or a coffin.
If this is your first time taking a particular batch (even if you've had the exact same print before) then take half or one hit and then increase your dosage later if you need to. Ideally you should be doing this even if you're sure it's LSD since some batches can be a lot stronger than others and you could get way more than you bargained for.
Also you said:
I have never seen anything that wasn't there
Do you mean like seeing people or pixies or pink elephants?
If so, that's not what psychedelics do. They warp your existing perceptions, but even at the highest doses it's never really like they make you think in drug classes at school.
You can see some really crazy stuff either way though, particularly at higher doses or with something like DMT, your whole environment can seem unreal and you can be completely unsure of where you are, because everything looks so "off" and different, and you can still see pink elephants with your eyes closed!
As others have said, we can't tell you what to expect from 6 hits either. 6 hits isn't a dosage, strength varies from blotter to blotter, a hit could be 20ug or it could be 200ug+.
Even if we knew the rough ug dosage of your particular hits that actually wouldn't help most people here to give you advice, since most people here talk about dosages saying oh 100ug is this or 200ug is that but they've never taken a measured dose. They've just taken blotter that they were *told* was at a certain dosage - or failing that they've just estimated dosages based on reading other peoples reports - those other people usually not knowing their real dosages themselves. There are a few exceptions to this with people who actually know how much they're getting, but for the most part people don't.
Hope this answers everything.