Anyone know a store where I can buy gluten in Tucson?

[Warpy]

7. Amaon will get it to you in a few days if you strike out

but health food stores generally carry a full range of Bob's Red Mill products, gluten flour among them. However, specific bread flour generally doesn't need added gluten. Rye flour and other specialty flours can.

If you proof your yeast, stop it. Just mix it in with the other dry ingredients. If it's old yeast, replace it. Use room temperature water to mix your bread.

My first attempt at bread was a brick because I proofed the yeast and killed it off. That brick made fine Melba toast. Once I stopped proofing my yeast, my breads were all fine.