Hate to say it, but the most important thing you can learn to do in the rc hobby is solder proficiently. Key is practice, and a good temperature controlled soldering station. I used to absolutely hate soldering with the cheap unregulated irons. Terribly solder joints that broke or just were plain ugly. Since getting a new temperature controlled solder station I have progressed to a point that I don't mind soldering in the least bit and actually enjoy some challenging smaller pieces of work. Practice on scrap wire and watch many tutorials. You'll get it!