Twan

Hi ! So i'm a beginner on KSP, and I try to get into orbit but I have a problem. When I'm at 18KM (sorry I'm french), I drop few reactors and I use "D" key (default) to go on 45°, but my rocket turns, and don't want to go where I want. I have 2 RCS (one on the top and one on the bottom) and four wings. Here is a picture of my rocket. http://i.imgur.com/zTpO2U7.jpg Sorry If I made some errors but I'm french so be cool please Thanks!