Jah-Army:
You keep mentioning Sweet Gum.
Sweet Gum will make a bow.
Cut yourself a 6 foot long, 8" to 12" diameter Sweet Gum.
Split it into four staves (That will be Work).......
Peal the bark off, Seal the bark side and the ends well. I would use polyurethane.
Put these four staves away to dry for at least a year.
Continue your learning until your Sweet Gum is dry.
Once the leaves start showing up post some pix of the trees you want to ID.
These guys can help with that.
David