Well, this is a very hard question. I'm not a psycholigist and I don't know you personaly so I can't form a very helpful response about what decision is right for you versus someone else that I know physically. Though I will say this; your suitability to re-enter civilian life depends largely on what you have seen, been through and taught in the military as well as your own interpretation of these events and I have no clue as to what that may have been. Therefore you may accept my conclusion that no one but yourself can decide with any kind of accuracy what-so-ever as to what you should do, and anyone who attempts it has no idea what in Allah's name they are talking about as there are very few people here with military experience or a degree in psychology who could give you some credible advice.
But as to my take on civilian life, I myself have spent long hard hours contemplating the comparitive differences between military and civilian life because I have been long set on enlisting in the Army. As to my conclusion; pros and cons of civy versus military life are many and in most cases are not the same for everyone. For me however I believe I would benefit greatly both physically and mentaly from being in the Army over continuing to live a civilian life and I look forward to the day when I finally sing those papers [rest assured I have my doubts about the military, but this is my general feeling about it]. My reasons for enlisting are that I wish to gain a higher degree of mental discipline, physical strength and to be with people in which I can find similar interests and common ground to stand on - a sense of unity, or family if you will. Also, I wish to experience events that will positively change my mentality towards life and why it is important. More specifically to resurrect the primitive survival instinct that I seemed to have lost, which will allow me to live life with a new sense of apprection for my surroundings instead of the solemn, bitter acceptance that I've carried for it practically all my life.
So those are my reasons for picking military over civilian life. But those are only goals, and goals are eventually accomplished and it will not take the rest of my life dedicated to the military to achieve that. You may have had goals before enlisting, and now you may or may not have accomplished them so you wish to leave. What's left after those goals to keep you in the military? Well, the only reasons I can guess as of now is to keep your life constant and on the road you know the best since the shift from military back into civilian life would perhaps cause a great disruption to your own lifestyle or long lasting inconveniences. But like I said only you can ascertain the specific reasons that warrant you to stay or leave the military. I encourage you to make your own decision on the matter.
I hope that helps!