- It sounds like one of the problems you ran into was massive undercapitalization. While some businesses can grow without spending anything on staff, promotions, marketing, etc., that's not the norm. Figure out how you can inject more resources into your business. Cash/barter/debt are all viable strategies (although debt is a potential time-bomb.)
- <4 months part-time is't really enough time to spend on a business before evaluating it as a failure. While pivoting may make sense, I'm pretty sure that $300 + 120 days doesn't generate enough data to say anything conclusive.
- SaaS products like Rakasheets are deceptively expensive for customers. This is good for the SaaS provider. Your middle-priced plan is ~$700 annually; factor in low turnover if you do a good job, and you're basically selling software in the $1500+ range. Keep this in mind when figuring out how to promote your product. The cheapest promotion channels may not be best for a relatively high-priced (vs consumer-targeted) product.
- If you're low on cash, try direct sales to start. That's you on the phone, or sending email. Or getting in your car and driving, if your area warrants it. If you're really offering something that will benefit your prospects' business, they want to hear from you.
Good luck!