How to buy on the dark web

Hey guys!

So my boyfriend and I suffer from heroin addiction for around a year now and we've tried a lot, there is not much people understanding nor willing to help. Sometimes I even think about giving up on him myself but there will be no one left for him and I can't. I have a methadone prescription for both of use but it is under my name since he wants to keep his clean to be a aircraft pilot one day. Last week my doctor suspected something and change my prescription to a every day supervised one and I can't stand it.

1- Going to the pharmacy everyday means i got to pay pharmacist fee of 15$ every day - 105$ a week (more expensive than a point /day)
2- I have no freedom, I can't move, I can't find work, everyday is just to go get my medicine (pharmacy is far, got no car)
3- My addiction is increasing !
4- I sleep all day

I'm just tired of it all, methadone is hard to get away from and I just want to take my life back into my own hands, no doctors that do not listen or really care or available only 1day every 2weeks. It's weird that it means buying opiate from the dark web but that is my only solution now.

So I already been scam 500$ =( we send the money directly to the site, courriermarket I think it was. I read that we should never send bitcoin directly to any market site and to use PGP.

I get that it is an encryption key but I don't understand how to place an order without sending bitcoins

also do you any of you guys know a good vendor for heroin or opioid that delivers to Canada.

Thanks for reading me! Need help, did 3 coldturkey already and I just cant do another one, I can't and watching my boyfriend suffer feels even worst.