Did you take any meds for the depression during that time period? I would get a note from that doctor stating the period of depression you reported was transient and related to the breakup. Chronic depression and the use of certain meds is disqualifying, but there are now exemptions in the rules that allow pilots to get cleared, idk what the rules are for ATC. The DUI is also going to be an issue on your medical exam as well as your security clearance. My recommendation to you is to contact your chosen medical examiner and disclose these things to him ahead of time before the appointment, and ask what he will need from you records wise in order to clear you. Otherwise he most likely will pull up your MedXPress and send you back home to get documentation.