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Based merely off the question and your spelling, I'm assuming you're underage and either in a city or some suburb.
Since I'm also assuming that you lack any kind of formal self defense training with any kind of weapon, your first line of defense is not looking like a victim in the first place.
Shout "Fire" first, then "help, fire!" People love to watch shit burn. They will also be more likely to come to a call of "fire" as opposed to "help."
Also, there are plenty of things in the average apartment that can serve as a weapon. Kitchen knives, being a prime example. Use your imagination. Look around you right now, what could you grab and slam into the wall and have it do more damage to the wall than the item?
Lastly, try to take some kind of formal class on self defense. If you can't afford it, use Google. A lot. This question could have easily been answered on there.