Agreed.
Congrats to the OP on the 3 pack. That is impressive on a tight table. However you should take Ratta's words to heart.
In pool, as in life, you mostly make your own luck. By which I mean that there is always a small risk that something bad might happen, no matter how trivial the task, but if you do it the safest way, it is very unlikely. Play in a way that takes the bad rolls out of the equation. Sometimes you take chances for a great reward, and it will go wrong on you. That's nothing to moan about, it had nothing to do with luck, it was statistics! I was feeling sorry for myself for a while a few years ago, having had a couple of my high runs cut short by what I considered bad rolls. At the time I blamed luck for a lot of things, good as well as bad. One run-stopper in particular was a scratch in the side after going into a small cluster of balls. My first real chance of getting to 100. I was going on about it to a much better player, one of the best actually. He told me to set it up, then played it the correct way, which had no risk to it what so ever. Last time I ever moaned about that. But I learned something from it. Every bad roll is a potential learning opportunity.
I think that most of the so called "bad rolls" come from a poor understanding of the risks involved in the shot. Whenever you touch a ball you didn't intend to with the cueball, you are rolling the dice. Whenever you are playing the cueball close to the pocket, you are gambling with scraching. If you shoot a shot that has a 25% chance of turning out bad, don't be surprised if it did just that. 1 in 4 is a big risk, you wouldn't bet your life on those odds if you didn't have to, would you? That's worse than traditional, 1 bullet russian roulette! So you took the shot that had those odds , and sometimes bad things happen when you do that. No reason to moan about it. If you did shoot it and got lucky, would you go on and on about it? Probably not.
The balls do not know what the score is. They are not out to get you. YOU are the one with a brain that knows what's at stake (the OP), so you should be the one who makes sure it doesn't go wrong at the worst possible time. I've actually come to hate the word "luck" as used all the time by certain people. It has so many connotations that are pure superstition. Pool is not about witches and leprechauns! It's physics!
I think straight pool is one of the best teachers when it comes to risk (one pocket is of course great too). You see an open table, balls spread all over, what could possibly go wrong, right? Then you rush a bit, and lo and behold: you are frozen behind a ball. The 100th time that happens to you, most people start wondering: Maybe this isn't about luck, after all? The sad thing is, most people need even more than 100 before they actually do something about their play...
Every ball set should come with a similar warning sign to this: