Truck driving jobs are one of the most needed jobs available and plumbing.
Truck drivers get paid well and after a year or two, your scheduling will be better for your family.
I looked into truck driving courses and the closest school is 80 miles in Reno and 5-6 weeks.

Problem is I live in California.
Closest school in Calif is 130 miles away and a cost of $1400.
You are getting school paid for you and support while learning.
You can't find a better deal.
Another thought is the Military
you have 2 years of college
you could enlist as an officer now.
Your family can live with you on base.
It sounds like you are good friends with your woman, that is so important.
Together you can pull this off.
Seperated, you would all suffer.
Your friendship, bond and love is strong.
Now cowboy up and take that first step to a LONGGGGG and happy future.
1-2 years is worth a lifetime of joy.
Good Luck