So I had what looked like changa, powdery though, there were these very yellow speckles in it which I was assuming was the DMT. Emptied the contents out of bag and they weighed 1.5 grams.

Keep in mind I am already high outta my mind since it's 4/20. It finally had come to me and I felt I had to take the opportunity.

We had no pipe or bong to smoke it from so we ended up mixing it with grinded up weed and rolling a blunt. The first blunt had about 0.5 grams in it.

The other guy who went first took 3 hits and wasn't feeling anything.

I took it and took 3 hits, I was feeling "higher" I guess but nothing crazy like what I'd imagined. So I ended up smoking the remainder of the blunt by myself cause I was desperately trying to get through thinking the stuff we had wasn't even DMT.

Now, I would close my eyes and start seeing one repeating image over and over, it was like when your computer lags and the cursor repeats itself. I was starting to see things, but then the smallest interruptions would bring me out of it!

For example, my friend giggled and I instantly lost everything.

It says to smoke MILLIGRAMS. We smoked 1.5 grams of changa mixed with weed (not sure what the ratio of in the changa)

I still didn't get the full on effects and for all I know I might have just been really fuckin high off the weed lol.

Now I'm wondering what I did wrong? or did I do anything wrong? Does there have to be absolute silence?

Also, I felt like crap coming out of it, couldn't walk straight, felt like puking.

Sounds like you don't even know what you were ingesting. That is the first thing you did wrong. Was it DMT? Was it changa? Make your own and then you don't have to worry about wondering.

If you are confident that what you were ingesting contained DMT then you likely only received a light dose. If this is changa or enhanced herbs then a bong or waterpipe is best. Learn everything you can about DMT. Read trip reports. Be an educated consumer. The nexus is a great resource.

Good luck!

I agree with DmnStr8. It is hard to know if you were even doing it in the first place. You should definitely know what you are taking before consuming. The only way to do that my be to do an extraction. You will have to put in more work, but it'll be well worth and you will know what you are taking. After you do that read a bit more on DMT to get a better understanding of this entheogen. Start here https://wiki.dmt-nexus.me/Main_Page for a great source of info.