If you're saying this:
Everyone knows about this. Even newbie can figure that detect invis is good or its nice to have return potion in sack.

But doing all this is quite boring. I better die with all my crappy gear on 16th rank than spend an hour getting potion of return. And I hate the idea to gather preps for hours and hours and then just spend them in half hour of raid/reraid routine. That is why I am just average in PK

I'd say a significant portion of what Nep wrote is very valuable advice to you. Specifically, recognizing that you are somewhat inexperienced, and that this inexperience is why you have "crappy gear", and why it takes you "an hour" to acquire a return potion. You're making those limitations inherent to the game, when really they're on you.

valguarnera@carrionfields.com