Of course you can change your home to meet your needs and live more independently. Changing a house can involve installing ramps or widening doors.
I have an injury due to my military mission before, as a result I am unable to work anymore and I'm unsure on how to make my payments. So, is it possible for me to get benefits from VR&E?
You might. If your service-connected disability limits your ability to work or prevents you from working, find out if you can get VR&E benefits and services like help exploring employment options and getting more training if required.
And what about Veterans housing assistance grants?