Need Help! Trade Free Labor

I need an O/O to help me with my backing and driving skills in return for my free labor. I went to and graduated from Western Truck School Jan 11
of this year. I failed my alley doc backup skills test twice at the DMV and only have 1 more chance before I have to get a new permit. So rather than rush to try again I thought I would trade my free labor as a lumper or
cleaning your trucks, or even as a backup driver for a team but probably need an owner operator as all the companies I have contacted said their
insurance companies do not allow permitted drivers to drive. Since I need
to get this Class A license to work to feed my family and pay my bills, I need some help fast and am willing to work free for a couple 2 or 3 weeks in trade for letting me practice backing up alley doc and parallel parking. I
live just north of Sacramento, California and can work anywhere in Northern California. If you can help please respond and I will send you my
resume, cover letter and clean medical and drivers license record. I am older guy at 59 Y O and have good work ethics and history. Also a Veteran. The school made no guarantees and their training is not very
much so I can expect little from them. I need to move on and get this
license. Thank You.