I used to be a recruiter for a military branch so I had to help my applicants fill out SF86s all the time. Put in your best effort, ensure there is complete continuity for the last 10 years, if you need to add any comments there is a comment section for each residence that you list where you can elaborate if you would like. Transparency will help you
The whole point of the sf86 is to make sure you aren't a terrorist, spy, crazy, a drug addict, or financially screwed to where you might be bribed to do crazy stuff. If you meet these basic requirements then you'll get the clearance
Just keep in mind they will run your credit (and probably look at your addresses on the report) and criminal history so I wouldn't omit anything there in regards to stuff in collections and so forth. I would recommend looking at your own credit report (you can get one at annualcreditreport.com for free) and see if you have anything in collections or overdue, that way you can either take care of it or put it on the sf86 so if you end up forgetting it they don't flag you for potentially concealing info