Bro you need to try with the w🪽ngs on not upside down. By the way that wing span you are working with just isn't going to cut for you to get any flight action. Use light liquid based glue to "properly" secure your arm supports and grip handles. Id also recommend you try stren💪gthening those cardboard wings with some liquid flexible resin based hardener. And start strengthening them small shoulders of your's so that you are able to generate enough lifting thrust so that you gain some altitude. YOU'RE WELCOME!