Hi Justice
I have no experience with COPD, but I can understand your desire to return to your "happy place." For me, it's spending time out in the woods where I spent a lot of time as a kid. The smell of the trees seems to rejuvenate my soul.
Returning home and to the beach is a good goal to keep in mind. Hopefully, it will give you a little extra strength to fight through all the red tape and stress you're dealing with now. Maybe you can try meditation/visualization techniques - i.e., take your mind back to the beach when you need to feel the ocean breeze on your face.
I'm disabled (homebound) with a rare and untreatable illness called familial amyloidosis. My woods aren't far away, but it's not very often I get the chance to get out there. Meditation/visualization helps when I need to get away but can't.
Keep hanging on. I'll bet those California ocean sunsets are worth the struggle.