You need to practice quiet rest. Hopefully you have not settled over the accident!!! You are suffering from PCS obviously. But as you have noticed it is affecting multiple facets of your life. Alcohol is a NO-NO as are several other things. Over stimulation will prolong your recovery. At 15 months you are well outside the parameters for a concussion.

PCS or mTBI is highly probable. If your doctor is not treating you for such you should find a different dr. Be careful and cautious identifying the new Dr as more treat concussion or mTBI as something that resolves with rest. Quiet rest, good nutrition, care for any cervogenic issues. Search out nutrition in this sub-forum for suggestions. You might want to google tbilaw and read up on the survivors guide.

If you have questions ask, we hear and understand what you are going thru.