Hopefully you have a Veterans Service Organization (VSO) helping you. Navigating the VA system by yourself is frustrating and time consuming. A good advocate can get you set up, get your paperwork filed, and have you getting your exams in very short order. There is usually an advocate office co-located or very nearby the VA office.
I even had a law firm try and couldn't get anything done. I got the tinnitus rating on my own.
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I haven’t worked with VFW or American Legion for claims stuff.
Lifetime member of VFW and DAV.