I'm assuming you mean #3 heroin? Brown powder heroin freebase made for vaporizing. The heroin salt in question makes a huge difference in terms ROA. Heroin #3 is very inefficient when snorted for example.

Trying h without an existing tolerance, you'll find it difficult to hit the sweet spot between threshold and too much nausea. It's very potent; even more so when smoked/vaporized. The dose-response curve leaves very little room for error. Fentanyl/fentalogs could also be involved, which would make it even more difficult to get a moderate dose.

Otherwise your vaporizing technique is probably less than perfect if you're new to it. Again, I'm assuming you used foil etc.? The thread below is a must-read in terms of dosing correctly and safely. If you're not familiar with forms and routes of administration, it's likely you did one or many things incorrectly (resulting in a sub-par experience).

https://www.bluelight.org/xf/threads/heroin-mega-thread-and-faq.396038/

That said, it's better to just say it doesn't work on you and move on. There has never been a worse time to get involved with this drug.