...is there is some kind of golden rule to hitting the vein and also how do the bubbles (in the needle) work? I've also heard that it takes 3 days in a row to become addicted. Is this true?
Listen, I wouldn't lie to you.
You don't have to hit a vein. Ever see the movie
Pulp Fiction? That's why I told you to find a long syringe. You want to cook up those 30 or 40 grams of dope and shoot them straight into your heart. The more bubbles in the syringe, the better the high. Suck about half the dope into the rig, then suck some air into it, then the rest of the dope. Shake it up until the bubbles are small and well spaced.
As for hitting the heart, this is where a lot of amateurs fuck up. You'll want to feel around for a space between the ribs. When you feel it, make a little dot there with a sharpie, then a couple of circles around that dot. That is going to be your target. Hit it hard, because you have to plow through the cartilage between the ribs. It's going to pinch a little, but no more than say, a power drill with a very small bit going into your brain (which is also a great high - Google
trepanation).
As for three days in a row to become addicted, that's governmental propaganda put out by people who don't want you to experience life's greatest pleasures. You have to do direct heart injections of dope at least 500 times before you start to crave it. Even then, the craving is no worse than what you get when you ride your bike past a McDonalds and smell the french fries you can't afford.
So relax, don't listen to the naysayers. Pump that shit into your heart, lean back into a puddle of warm piss and get ready for the ride of your life.