I think the most important part is to not be intimidated. Nobody was an expert on their first repair and you may make some mistakes, just keep the small. Speaking of small, don't let a major repair scare you off either. For a serious repair, first separate the wing from the fuselage and remove everything that you can to make it easier to handle. Go ahead and remove the covering where you need to so that you may examine the damage better and look for hidden damage. Flex squeeze the various parts to detect cracks/breaks. Formulate a plan. Break up the repair into a series of small repairs not one big one, less intimidating. As each small repair is accomplished the plane will look better and you will feel better about the project. Before you know it the plane will be fixed.