It seems that you are one who can do it on your own and that is good. There are certainly better trainers for wind but they are typcially 40 to 60 size fuel rather than electric. My suggestion is the fly the one you have until it has so much duct tape it wont get off the ground anymore. Just take your time and don't push it on windy days. There are many people here who will tell you wind doesn't matter and inertia/momentum are figments of the imagination but that is a load of horsepucky. When you are ready to move up into something heavier you will also be able to handle higher winds. Weight is your friend when it comes to wind. And there are big electric motors too. I have a 60 size Bigfoot in a 55 inch balsa biplane.