I am very sorry to hear this, hopefully you will come back from this and Thank you sincerely for all of your free paper models you have given. God bless you.
Try paint.net. also yes, draw all you can and assemble you will learn so much! Talk to RhavenBlaack about the scaling and mathematics. I would skip straight to drawing meshes for 3D printing.
WOW WEE!!!! That is perfecto! You really are inspiring me to get back to work on my projects, I totally want to become good at stuff like this as you are!