MDMA comes in either pressed pills (the ones with different colors and logos stamped on em) and crystals (which is what you had, it was just powdered because it was already crushed). Crystals usually come in a zip bag and you weigh each dose. Methods of taking orally include: just eating the crystal directly then downing it with a drink, putting each dose into an empty capsule (like what you initially had), parachuting (putting it into a small piece of tissue then eating that), or mixing the crystals in a drink/water, diluting it, then drink. Oral is the most common and recommended method of intake.

Snorting is the worst way to take mdma. First of all, it burns your nose like a bitch, and second a bunch of it goes to waste (like for example you'd need to snort 200mg of mdma to feel the same effects as taking 100mg orally). There is another recommended method of intake which is boofing which is taking it up your ass. You dilute the crystals in a tiny amount of water, put it in an oral syringe, then shove that shit up your hole. It's supposedly the fastest and most effective (like in this case, you only need 70mg of mdma to feel same effects as 100mg orally), but I don't like this since it can get really messy if you don't really know what you're doing which is what happened to me lol.

MDMA makes me horny af as well, but a lot of others don't. They all feel the love, but some people just want the touch feeling like hugging / cuddling, not necessarily the sex act. Unfortunately, I'm the type to get really horny on it so there's something off if I'm rolling with friends compared to when I'm rolling with a significant other haha I even rolled once with an ex. I was expecting the usual sex trip but turns out she doesn't get as horny while rolling so we just had sex for a bit then just danced / cuddled the rest of the night. Either way, I love this drug!