Dude, you can't call yourself a failure just because of one little slip-up!
...Wait, I have an idea!!
What if you don't submit it as an ADDON, but you put it in the forum as a PLUGIN in a .zip file
with all of the resources inside of it? It seems MUCH easier if you do it that way!
All you'd have to do is make sure it works inside a file with the resources (make sure you're using resources
from that file, for example: if you have it in a folder named
Tank Addon, then you would use resources from
Tank Addon/3D Rad_res/(whatever file, say skinmesh or rigidbody or something). Does that make sense? I hope this little tip was helpful to you! And besides, it WAS your first EVER addon! Again: I hope i've helped!!