The first time I ever used cannabis, a friend pan fried some really mediocre still green weed in butter, strained it, and baked brownies. Two of them took me into the 5th dimension. Time stopped, I could see everything in magnified 3D all at once, I couldn't feel my body, I felt really happy, laughed a lot, acted goofy, had lots of energy, became outgoing and talkative, was at peace with the world and everyone I know, and experienced the 1st day free of generalized anxiety that I can ever remember.

Basically, it was the best experience of my entire life, and I'm hoping to god it's possible to repeat.

The problem is, so far, I haven't been able to. I hope this is because I haven't figured out how to properly extract the cannabinoids myself, and is not due to an alteration in some neural receptor in my brain that will stop me from getting high like that again.

Yesterday I tried cooking some good weed in 1 stick butter in a crock pot for 8 hours. Baked the brownies. Ate a couple around 7pm. I had eaten a meal a couple hours earlier, so I understand this was a mistake and will slow the digestion down a lot. Also, I hadn't slept well the night before. Regardless, the effects were terribly disappointing.

I did feel something: I couldn't walk straight, had trouble following the plot of the movie I was watching (short term memory loss), experienced some mild visual distortions. It made me sleepy and I had some intense dreams. Overall, not really that pleasant

The WORST of it is that I woke up today with what feels like a hangover. I just feel kind of sick, lethargic, slow mentally and physically. This has lasted all day.

Has anyone else experienced this? Why?

Will I ever be able to get as high as the first time?

What is the precise temperature and duration weed should be cooked in oil? I read many recipes with conflicting directions. Has anyone done any kind of scientific experimentation with varying temperature/time to find the best method?

Any advice is greatly appreciated.

Just like smoking its going to depend on the type and quality of the pot.
Its faster if you through the weed in a pan in the oven at about 200 degrees for a half hour. Then put it through a coffee grinder. Take the amount of oil for the recipe, put it in a pan,stir in the powdered weed and let it simmer on low for about 15 minutes. Stri good, let cool off a little then add to the recipe. I use between7 and 10 grams for my brownies depending on the potency.

Well... from what it seems, the first cannabis brownies you ate were made with a sativa, which the main effects are the blacklighted ones... and the ones you did were probably made with a indica which makes one sleepy and slow.
So, to get that amazing first high again, get some sativa, bake it, and have fun!

Note that smoking and eating causes different effects. You said you have anxiety. In this case, only use sativa strains to cook with. Do NOT smoke pure sativa strains, because when smoked they can increase anxiety. If you were to smoke, smoke some indica, or a mix of the two.

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"Everything we do, everything we are, rests on our personal power. If we have enough of it, one word uttered to us might be sufficient to change the course of our lives. But if we don't have enough personal power, the most magnificent piece of wisdom can be revealed to us and that revelation won't make a damn bit of difference." Don Juan Matus - Tales of Power

I had a similar experience once. I was testing how much hash I had to consume for an 11 hour flight. The first test run was the most insane high Ive ever had. I went to the movies and explained to my girlfriend that I was going to die if I got any higher and that there was no way I could operate my car. I could not even attempt to explain how high I was that night but the next day I was so hungover. I actually was kinda glad this happened to me. Im sure I took too large of a dose and I didnt die, just had a wicked trip. Seems safe to me. needless to say I only took half the dose on my flight!

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"Prohibition... goes beyond the bounds of reason in that it attempts to control a man's appetite by legislation and makes a crime out of things that are not crimes. A prohibition law strikes a blow at the very principles upon which our government was founded." -- Abraham Lincoln December, 1840

"I'm not not licking toads" -Homer Simpson

"Focus on what I invest in, got married to marijuana, yeah, and the connect is my best man" -Jadakiss

how much hash was that...

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I smoke it down to the ash end burnin lips and finger tips, on for helly shit and take a bullet like a pacifist, right in the ashtray where it belongs, from the bag to the j to the vape to the bong-Stoner songs Twiztid - Bagz, Hydro. KmK- Blaze Allday,Can Anybody Hear me.AbK- Hollowpoint