Perhaps you should agree to make a clean break for a certain period of time, for example, 6 months, or until the end of the first year. During this time you are single and have no ties. You can still talk to each other, but you're not allowed to talk about your relationship, and if you see each other, try to keep it on a platonic level.
Get out there and find other people to fancy. Whilst utterly meaningless, a couple of drunken kisses in a club never did anyone any harm, even if you don't think you'd want to do that now. Just experiment and see how your lives pan out without each other. Then at this specified time, you can meet up and re-evaluate things. You might decide you're better off single, or you might want to get back together. But don't make the decision, or even discuss it, before the time period is up. If it's too soon, you'll just want to get back together, whether it's the right thing to do or not.