the car revs up but doesn't go forward, doesn't move

What is your question?

the other day when i was driving i changed lane and when i placed my foot on the gas pedal again the car would rev up but would not increase speed and before i knew it i was losing power. i kept on pressing on the gas pedal and nothing just kept reving up but not going forward. i had it towed to my neighbourhood, i really need my car and i can't afford repairs right now seeing how i'm school and what not. if i can have it work for another 6 monthes i'll be happy with that i should be done my studies and well into my career. plzzzzzz anyone ps i live in Toronto, Canada, i couldn't send my question without providing an american zip code