Brian, Ken touched on it but did not get real specific. Gorilla Glue has one nasty characteristic: as it cures it expands. It expands enough that it will push two pieces of wood apart and then you have two pieces with a nasty looking glob of glue between them rather than a good joint where the wood is still touching and the glue soaked into it. You can eliminate that by clamping or pinning the two pieces so that the glue won't push them apart, but eopxy is better. It cures faster amd is stronger than Gorilla Glue. You will figure all this out as you go if you stay with it. Probably 90% of all glue joints in an airframe are either alaphatic resin (Titebond) or CA, your choice. Epoxy is used in mounting firewalls to fuselage, joining wing halves, gluing landing gear blocks in, and mounting tail feathers. If you're flying foamies, hot glue seems to be the trick.

As others have said, I believe you have the correct attitude to succeed in this addiction. And don't let the wheelchair bother you. The best flier I ever saw always sat when he flew. Toward the end of his life, he could not stand long enough nor was he steady enough on his feet, to fly. But sitting with a transmitter in his hands, he became a magician.