First time taking MDMA at a festival, some harm-reduction questions

Hi everybody,

Im going to a festivel and for the first day we plan to drink, smoke some weed and to "party" in general.
The second day we plan to drink a bit in the morning then smoke some weed and around 6pm we plan to do MDMA (for the 1st time).

Things I have concerns are:

• 1. Is it a good idea to have afirst time MDMAexperience at afestival?
• 2. Howmuch mg should I take ? (80-90kg male)
• 3. Is it a good idea to takeMDMA without agood nightrest before ? - I mean we won´t be getting
  really good sleep because we are goona sleep in a tent - are there going to be any adverse side-effects - bad experience?
• 4. How muchcan I drink alcohol // how long should I not be drinking before dropping? Or should I avoid drinking that day at all?
• 5. If a friend isstressed/anxious about upcoming examination in 12 days, is it better for him not to take MDMA - is here ahigh possibility forbad trip /panic attack?
• 6. Is the body load and anxiety something too much that I should prepare for?

P.S. I was thinking abou 100mg, I bought gatorade, magnesium, vit. C, chewing gums and ginger-shot (idk if it helps)

Sorry for so many questions but I really want to get this done right. Thank you very much <3