Welcome to the forum from a Texas Brewer.
What kind of kits do you use? I started with LME kits but switched to DME after 5 kits due to the extract "twang" one gets with older extract. The DME increased my cost per beer about 0.1 cents but it stays fresh longer. When I switched to DME I started ordering my own supplies instead of kits and switched from corn sugar to table sugar for bottle conditioning. That saved some money because its cheaper and you use about 80% of the weight of corn sugar.
Harvesting , rinsing and reusing yeast saved me alot of money.
Switching to all grain saved some money too and gave me more control of the process. Right now I'm trying to dial in my malt cost. The local Homebrew shop about an hour away want to charge me $79.00 for 55 pounds of pale ale malt, the one 30 minutes away wants over 120 dollars for the same thing. Ordering online is about the same due to the shipping cost.
All the homebrew clubs are pretty far away too (I was thinking of putting in a group order with them).
Finally in desperation I contacted a local craft brewery thats only 3 miles from my house. He says he will order a bag for me and I can pick it up and pay cost when it comes in. They generally order once a month.
So for 2 years I practiced brewing good beer. Now I'm working on brewing good beer as cheaply as possible. I'm looking at less that 50 cents a 12 ounce beer (counting caps, bottles etc....I bottle condition).
I'm trying to grow my own hops. Those little suckers are fighting me every inch of the way.
The next 2 projects are going to be
1.) Growing my own 2 row barley (I have the seeds, fertilizer etc.)
2,) Malting said barley (That's going to be a heavy lift)