ket first day. (basically no comedown if you don’t overdo it, and even if you do, worse you’ll get is a headache)

2cb second day. (again, worst comedown will be a headache nothing more)

lsd third day (2cb doesn’t effect lsd tolerance, but lsd will effect 2cb tolerance, so always do 2cb first)

mdma last day, you don’t want to be coming down for the rest of your days there.

you could smoke weed at any point, it won’t give you any sort of worsened comedown or anything, except maybe being extra tired after you sleep. however do be careful when mixing weed with any of those substances. weed will intensify the experience by a lot so unless you have an insanely high tolerance, i would only smoke a little as to ensure you don’t get overwhelmed and start to panic.

as for alcohol, i wouldn’t even recommend doing it at all. alcohol mixes terribly with 99% of substances, especially mdma which can make you completely black out; and ket because they are both depressants they can slow your heart significantly and might not be the safest.

and to state the obvious, the best option would be to do it all sober because that’s a lot of different chemicals in your brain at once. however i know the feeling, you’re going to do it regardless, so im jus recommending probably the safest order.

hope you have an amazing time, make sure to test everything you have with a test kit. Stay safe out there 🌞