ANTS IN MY ROOM? HELP!!?

Im only 12 years old (turning 13 in a month) Im also a girl but anyways I was chillin on xbox live when I saw this really big ant on my wall so i like whipped it with a towel then when it waz crawling i hit it with a towel and idk where it went after that.. then I go to google how to kill aunts and I emptyed one of my empty hair spray bottles ( I ment to say that I just washed it out) and filled it up with half hot water, some 10 sprays of windex, some kitchen dish soap, and a bunch of salt.. i then walk back into my room to find another ant on the other side of my room! (the first 1 waz right near my bed) and i saw it crawl into the heater and im not sure if it waz just my eyes or not but i think their was a second 1 to and it followed right behind it ( i didnt see them both out at the same time so im not sure if it was just 1) after that it crawled near where i do my makeup and stuff but i smashed it with a different towel this time but like the first time im not sure if i got it or if its dead under their and I CANNOT look at dead bugs or anything im really afraid of them.. Yes I eat in my room everyday but now ive learned my lesson no more eating in this room! While im waiting for answers im probaly gonna vaccum my room.. Btw I tried putting baby powder around the corners but I have bad luck so the bottle was empty and I barley got any out.. So yeah please help me.. and I did find some cracks and stuff but I cant fix them.. Ive tried telling my mom and stuff about all these bugs but she just says because its summer... I REALLY want them out.. What else should I do to stop them from coming..please help.. cause who knowz.. whats next? I might find giant spiders and cockroatches ( I do live in the woods) So im really scaredd so please help and fast! (Btw my mom and her bf wont help me kill them or anything) I also keep my windowz down and my fan on all day..