If your goal is to stay clean, and you feel that being married will help you do so, keep the following in mind: even when you're married, your wife will, generally, be forbidden to you two weeks out of every four. So, if you're not able to stay clean for 2 weeks, marriage won't keep you clean.
Furthermore, after giving birth, your wife will usually be forbidden to you for 6 weeks (sometimes more). Therefore, if you're not able to stay clean for 6 weeks, marriage won't keep you clean.
Also, keep in mind that if you're not actively in recovery, you won't have a clear head to decide if you're making the right choice who to marry. If she's beautiful, but not really right for you in more important areas, the good looks will likely be too much of a Shochad, unless you're working with the right priorities. If you are drunk from lust, you're not likely to make the right choice.