Failed security clearance

Well I joined the army and swore in and everything and I went to pick my job and couldn't get my security clearance. I had high hopes. I've been working out for around four to five years now. I was wanting to be a Ranger or even Green Beret. I guess not now since I couldn't get a security clearance because of something ridiculous that happened in Florida. I was arrested in Florida for "fighting". A friend and I were breaking up a fight but we were "involved" so we were arrested too. Pensacola is crawling with little bored off duty officers looking to show off they are in control. I guess I will just do reserves now.