Think i had my first lucid dream, got a few questions.

first, i got lucid without using any special inducing method, neither have i been doing a whole lot of realitychecks. The way i got lucid was interesting, i was sleeping over at my girlfriends house and it was around 11 in the morning. Her younger brother was playing drums and later ps3, all these sounds made my dream very noisy and chatoic. I was at my own home, and i "woke up" perhaps three times, but i kept waking up into a new dream. Eventually this seemed very strange, and i thought "oh hell, im dreaming"

Following all the rules ive read, i started spinning around and telling myself something like "youre lucid, youre aware of your dream", in english, which might be wierd as im finnish.

The next memory i have is that i think forth my girlfriend, at this point i doubt i knew anything about the environment. All i know is that theres a couple of guys chasing me, following the rules ive learned i decided to ignore them expecting that they would disappear. At the same time i kept thinking, "i wish i was in a warm and cozy room with her", this seemed to make the environment cold, and i think it started snowing.

Next second i hear one of the guys chasing me down a little too close, so in an attempt to protect myself and my girlfriend i throw a hard punch in the chasers face. This leads to me realising theres probably five times more people chasing me. Next thing i remember is me being in a room, i start focusing on very many things in my environment at the same time and i eventually feel myself "waking up" over the next 3 seconds.

Just a week ago i read some long post, with the 3 rules of attention and emotion. My dream seems to have reacted VERY strictly according to these rules, when i try to look logically at the situation.

so, 1. did my brain fool itself making my dream overreact according to these rules?
2. where did these guys chasing me come from?
3. why on earth did i end up in a complete nothingness when i realised im lucid? its as if evrything that just disappeared
4. Anyone else experienced the same type of way in getting lucid than me?

I apologize for any sort of bad english, im just 17, its late and im abit exited hoping for answers

Hey Mystajs, welcome to the forums and congrats on achieving your first lucid dream! One thing to note, that even when lucid, dreams are still very random, as well as hard to control depending on your confidence which can be greatly effected by your level of lucidity. I don't really know what "3 rules" you are talking about, but I will try my best to answer your questions.

1. As said, I don't know what rules you are talking about. But often the dream doesn't do what you want to do, and rather what you expect it to do. (And sometimes it just doesn't listen at all and you have to give it a few tries)
2. It is a dream, crazy things like that happen in dreams. ;) Next time, don't ignore them, but rather confront them in a friendly manner. Perhaps stop them and ask why they are chasing you, that alone should stop them, but you could always try befriending them so they either go away, or join you on your adventure. When you ignore things, or turn your back on them, they often expound the problem or change completely. (Ever think of a nightmare when you were little, where something was chasing you? Sure when you saw it it was scary, but once you started running it would get worse, especially if you looked back again)
3. This might have been an expectation on your part. Or perhaps you just lost track of your surroundings because you got excited you were lucid, so it went blank. (And if that is the case, you are lucky you didn't wake up) There are a few ways to remedy this, though for some people these methods might wake you. First you could simply imagine things to appear (which is sorta hard at times), perhaps you could try spinning while imagining the scene you will arrive at, you could try closing your eyes and opening them, or you could use your surroundings to spawn something (for example, pretend the blackness is a pit, and you are falling down into an underground ocean, or perhaps you are in the middle of outer space, and is that a star you see in the distance? Try going towards it) These are just ideas, that last one is theoretical as I have not tried it, but you could give it a shot.
4. Perhaps not by noises from the outside, but I have had random moments where I suddenly realize I am dreaming and have trouble controlling things.

Thanks for the reply, got to keep those things in mind!