My breaking point for my last job was when my third cheque bounced. They'd all been compensated for, but I decided I was sick of the financial worry. You gotta get some warmer clothing, dawg. Got any newspaper/other scrap paper around? crumple it up and stuff it in your jacket/sweater/whatever. It works. Also, change your socks on the regular, and whenever they get wet. the last thing you need is cold wet socks on your body. Keep your core warm. You probably know all this but it bears repeating. stay safe out there.
Wearing the Cabela's camo ensemble, actually, overpants, eddie Bauer shirt, wool socks and a wool stocking cap. Problem is, my boots needed sealer and Cabela's had none and 4 hours later I got the call and 16 hours later I was on the road. My feet never dry out. And the mud is a living, breathing thing. A hose does not impress it.
To add to this, wet and cotton is as bad as wet and nude. Wool and synthetics are the only way to stay warm when wet.