Carmen, under your situation would it be better to have your truck towed to a trusted mechanic some friend recommends....get the truck running first, if it will run, drive it and then decide what you want to do, if anything.
I understand the 16-18 hours a day. Did my share. Its probably better to keep working and pay someone else with the expertise to get it going rather than spend money on it if your not totally sure at this point.
That said there are almost to many options to even try list. With your model truck though there are some "updates" that are surely easier than some on the earlier model trucks!
We're here to help. Think about and ask questions...and there are a LOT of Texas Bolters. It'd be nice to fine one near you so keep watch.