Buy an ARF trainer.
Fit it out and start learning to fly, learn how ailerons function on the plane in flight, same with elevators, rudder, learn throttle management, stall recovery etc.

After getting the basic idea, then get yourself a laser cut kit from SIG, Great Planes etc and start building.
You will have more idea of how things function as a package from learning to fly, and then find it easier to 'see' how this would all go together by building a decent quality kit.

This is what I did and I found it so much easier to put my SSE kit together.
I have plans for a BT 109 sitting on the shelf and I'm about 12 months and 10 kits away from making a start on her.

It sure is good to see someone wanting to build.