While there are limits to learning that might be correlated with IQ it is unlikely that your IQ is a problem. Curiosity and enthusiasm are far more important.
Some advice that others would support - take your time. Electronics is a very broad area. You can choose to learn all about the physics first then basic electronics, advanced electronics and so on.
You can also start in the middle, so to speak, by building some simple things then working your way backward on the theory, if you desire, and working your way forward as your skills improve. An organized program of study is probably a great approach but not everyone can afford that - and most people do just fine (they are happy) by reading a little, building/experimenting and then discussing their work with others. Pick a subject area that interests you. Robotics might be an example. I can tell you that there are several good publications out there by robotics enthusiasts that provide enough information for you to start working with PICs relatively early in the process. There is no substitute for learning the basics first but the basics can be so boring that you might loose interest. Amateur radio is another special interest area. Many participants get licensed, start enjoying the hobby then back their way into learning.
Good luck and have fun.
