Hi Hatterika,
I'm not trying to stipulate that international student
should not care about going to school once entering US soil. However, I
don't think your sponsor will get into serious problem if you don't go
to school. I suggest you to go to school if possible; since there is no
long term meaning of staying in US illegally. You will regret it after
4-5 years if not today since it will be problem for you to leave the
country and come back in future. You  have to stay isolated to your
loved ones till you stay in US. It doesn't bring anything good to you
in the long run. Its different story if you get GC in future either
through amnesty or marrying US citizen in future but that's not
guaranteed; more you stay like that more stressed and depressed you
get. How are you going to survive with a fear of being caught everyday
when you get pulled over or you get on domestic flight or in worst case
traveling in greyhound bus( it happens when you travel around mexico
border like arizona, el paso etc).
If its not too late, I suggest
you to go to school, get your degree and look for a job. Otherwise, Its
hard to take care of yourself and family with 5-10 dollar/hour job(if
somebody makes more than that in military or other good job luckily,
please don't get offended) throughout your life. I bet you will get
tired after a while.
Please don't take it otherwise. Its just my open view and based on my experience.
Take care!