My response would be that unless you're rated at 100%, to file another claim and keep on until you are. There is a lot of information available on the Interwebz. Check out VA Claims Insider on YouTube. I was initially rated at a mere 10%, and I thought that was fair for a long time. Then I got to reading, and filed another claim That got me up to 40%. I filed yet another claim (with supporting documents) and got up to 80%. I filed an additional claim, also with supporting docs, and am now rated at 100%.
I am NOT necessarily advocating giving money to ANYONE to help you get your disability rating increased. I didn't pay anyone, although I can see situations where obtaining some Nexus Letters from an MD would be very helpful. VACI has a lot of free info on YT that you can use. Spend a few hours watching their vids, and follow their advice. Support your claims with Buddy Letters and statements by your spouse. Research medical papers that support your claim. It does make a difference!