u/Gecko_404

(I play on java pc) I have this skin i really really want (designed it myself with alot of help, i am NOT an artist) however its an image i can't seem to get it as PNG, 64x64. When i put it in "MinecraftSkins.net" it says "image to big" or the skin comes out all distorted and wrong. Again, i am not an artist so "recreating" or "retracing/drawing" it, did not work for me. I am also scared my skin design will get stolen if i show it. I also don't have money for someone to make/fix it for me so maybe someone here can explain how to fix it?