No matter how hard I try, something always goes wrong when I try to go to the Mün. Just today I was on a sub-orbital trajectory around Kerbin when I aimed at the Mün. Until then, everything had gone perfectly well. As I reached my node, I throttled up to 100% and in a few seconds the flight went from completely stable to spinning uncontrollably. I checked everything; nothing was unsymmetrical, all engines produced the same thrust, all tanks were crossfeeding fine. Nothing ever works out for me, and I wonder how I'll even get to Minmus at this rate. Please help!