Honestly... if you're losing money it's not an internal issue - it's an external one.
Brute force is sometimes the answer. Get outside sales going and go hard and go far. Expand your area - you need to meet a baseline amount of income and can't rely only on walk-ins and repeat customers.
Bang the door of every business in your town, then go further.
I've ALWAYS said you can't sell a
sign. You're selling yourself and your experience. A customer is always going to have a need for a
sign before making a decision to purchase one. Figure out which companies have needs, and cherry pick in areas outside of your town.
I'll go out and come back with 5-6 RFQs almost every time, cherrypicking 25 miles from base.