?

How to get higher?

dont smoke for a couple weeks
smoke more
use something that gives a more concentrated hit like a bong
use a vaporizer
smoke hash, hash oil, or other concentrates
smoke top quality, well grown, well dried, well cured conissour grade buds
switch strains, you develop strain specific tolorance to cannabis, ie if you grow one strain and end up smoking a lb of only that strain it will barely get you high after a while, even if its fire
avoid blunts, joints, rillos
make strong cannabutter and cook up some edibles (i got my friend so stoned he wouldnt smoke with me or even leave his couch, and he smokes regularly too)

just a few suggestions

climb a ladder?

get a trampoline or a helicopter

trancendental meditation and ludes?

take back to back gravity bong hits out of a big bottle.

You should try eating some mango before you smoke. Try it. Seriously.