since your dose is unknown be sure to have somone able and willing to sit you if you become comatose/ overwhelmed. bring earplugs to stop the festival noise if you decide to escape to a quiet place.
fasting for 12 hours drastically increases the cacti's effects, and not eating for 5 hours keeps the fullest effects ensured. when you eat youll notice an immediate come down, a very relaxed feeling, but a less introspective/aware one
id like to point out that i prefer to dose cacti at night (for entheogenic use), earlier if youre using it for recreational purposes
i dont like drinking beer on cacti as i feel bloated, liquor solves that. drinkin on cacti transforms the experience into some more shallow and often more suitable for use socially.
i like smoking dmt on cacti, i dont smoke dmt any other time anymore. this a good way to make a medium experience instantly stronger and taper off quickly enough to keep on with your whatever you had planned. i find that using cacti as a platform for dmt launch seemlessly seggweighs into hyperspace without my usual frantic sober thoughts (as i am centered on cacti)
smoking ganja makes the experience stronger for a few hours, becareful to take just one hit at your peak if its not strong enough and wait 20 min for full effects. smoking too much too quickly while peaking/ before your peak is a recipe for snowballing paranoia. however ive never had ganja+cacti become too much. later on, smoke more and more, its like you have smoking super powers, you never get too stoned or tired to quit, its just more and more fun.i miss this a bit.
for the first few hours be sure to be laying on your back, this reduces all unmanagable amounts of nausea. only get up when you feel comfortable doing a few situps or your burps dont taste terrible/inspire you to gag.
best of luck and remember it cant kill you.
achuma puma