Crusader, I am in my mid thirties and have battled PTSD induced anxiety and depression for the past 13 years or so, as well as ADHD. I consider myself to be a fully functional individual, but that could easily not be the case if I hadn’t pursued professional help in dealing with things. There is absolutely no way to over-value a solid family and friends support system, but likewise it is impossible to overstate the benefits that can be wrought from finding a therapist/psychiatrist/psychologist that you are comfortable with and seeing them regularly. There is no way to know this for sure, but I firmly believe that seeking help saved my life. It certainly improves my quality of life beyond measure.
As fo the adhd, I’ve jut kind of adjusted to it over the years and learned to compensate in various ways. Probably the three biggest for me were: making, and using, lists, regular excercise, and caffeine.
Stay strong and get yourself to a better place!