Most instruction manuals recommend that, after drilling and tapping holes, you can wick a drop or two of thin CA into them, let them cure, then re-thread. (It's tougher than raw wood alone.)

TIP:
When you install screws in areas where there will be vibration, (Is there an area without vibration?) put a small drop of ordinary silicone on the screw tip, then install it. The silicone resists vibration, and holds the screw firmly, (even on hot metal, like engine mount screws) yet it can be easily cut away later, if needed.

It's a good idea to check ALL the screws and connections occasionally. I once had a couple of flights on an "old reliable" plane, where it flew fine at high speed, but would start to oscillate wildly in pitch, on landing. When I inspected it, I found that the servo tray had popped loose and was only attached by the pushrods. (!)
This wasn't obvious when just looking into the plane. You have to actually get in there with your hands, and wiggle the thing to discover it.

Fly safe, and have a blast!