I need help about how to file my taxes...dont really know what it is,never knew i had to do it,help anyone plz?

i am 19 right now. i 1st had my job at the age of 16 worked for 3days and got paid 168 dollars and 50 cents.. 7.25 an hr -worked- 24 hrs (brick force is the companys name) "ware house: unloading a truck" "i had to leave this job cus it was temporary for the summer + the fact i was underage..she never gave me no paper about my taxes" then at the age of 18 i worked for (a company named IDT Energy) 'marketing: supling gas & electric" did 2days training and worked 1day...5 dollars per person or house hold that accepts the discount we was offering...i worked 8hrs that day and i decided to quit cus the whole thing just wasnt me...i only got paid 22 dollars...they said that most of the costumers that i spoke to called and canceld the offer if not i would of gotten paid more...and now i work for (a agency named labor ready) "temporary jobs: random" get paid from 7.25 to 7.74 - depends on the job/company that you work for- what do i do about my taxes...will i get it back...i never knew i had to file for my taxes...and i wouldnt know how to do it if i could now...i never got no paper about my taxes...maybe its not even worth filing for my texes cus i never made that much or worked that much or for long....i know that whenever i quit this job now they would give me a paper about it...but what can i do now cus i heard i could get in trouble if you dont file for your taxes...this is all new to me can someone help me plz asap...im scared ima get locked up