is good for me to correct the information?

<p>i asked my teacher to write a recommedation letter for me. she just wrote down the information what i have sent to her. i said that i have work experience but in fact i just worked 3 days. now i think that it is not a work experience, and i scared about if it would make my fafsa goes bad-work experience with less than 100 dollara payment, is it sound like i am cheating on tax? and i didn't pay any tax.
so i am thinking about to talk to my teacher. and ask she to write a new letter and add a paper to explain the correction-i make mistake on what should become a work experience. and tell the college that i just work for a few days, not enough for a work experience.
is it good? will the college thinks that i am a liar?</p>