As a geezer who has been making jewelry for around 35 years, I'd
say that you're going about it bass akwards. Get a sketch pad and a
pencil. Maybe some wax.
Guess I'm backwards too :-D
I learned to make things by hand first, then I learned to draw those
3D objects with a computer, then I learned to draw by hand.
Now I can do it the other way :-)
Starting with wax and paper is the cheaper route ;-)
Regards Charles A.