Hello, check out the local Disabled American Veterans (DAV.org) I am a member and many Vietnam era veterans have wives that get support from the VA with help from the DAV.
The website for the Colorado Springs chapter is https://www.dav26.org/
There is no cost and you do not need to join to get help.
I am a disabled Air Force Veteran and finally found the DAV after 40 years of trying to deal on my own.
There is a DAV caregiver program, see https://www.dav.org/get-help-now/veteran-topics-resources/caregivers/

I hope this helps.