I think I have spent my life on the verge of losing it. The VA doc who was rude to you was doing his job which is to try to minimize service related claims of injury and disability. I encourage you with all of my heart to go to a VA clinic and state that you have issues relating to your experience in the Marines and need to speak with someone. Get a psychiatrist through the VA. You very well may have a service connected claim and also you are entitled to the help of this lovely country who treats our children this way. You are doing the best you can. It's not you it's the world, that is how I often feel.