I recently got back into this game, and I have been trying to get to other planets, and while I have been able to do this, it is extremely sloppily and inefficient. I can get a probe in Jool orbit, but not neatly, I usually end up having a highly eccentric somewhat polar orbit without enough fuel to go to its moons or try to atleast circularize my orbit, and I can get to Duna or Eve and land on it or put something in orbit around it, but almost never at a perfect equatorial orbit, and its almost always a really poor orbit. How do I more neatly and efficiently get to other planets?