Abstinence

I need some advice, my boyfriend and I have been together for over 2 years and have been having sex for more than a year. We have both realized that this is damaging our relationship and that we should abstain until we get married. What are some tips and advice to help keep us on our path of abstinence? I know this is very hard we did this in the beginning of our relationship. I now have taken more seriously that sex is a husband privilege and not a boyfriend privilege.