Even if you are brand new with your first site and want it to rank; you can either do your own backlink campaign or outsource it, immediately. But one thing you have to know and remember is that the off-page SEO is not an overnight thing. If you have never done any backlinking before, then just be sure you know what you are doing and avoid doing the wrong thing. The article below goes into a few simple to apply link building tactics that apply to new sites. Buy Backlinks to save you both time and money.
A Primer on Backlinking for Novice Web Businesses