Who spent years working on several SaaS initiatives, burned out, and moved on to other ventures since they weren't making enough money?

I would adore to hear your tales.
Extending the duration without yielding positive outcomes is not only a financial problem; it also undermines confidence, causes fatigue, and sometimes creates resistance to continuing.​

me, but I haven’t (yet) moved to another line of work.
After launching three to four products annually since 2020, trying a lot of different things, and concentrating recently on marketing, I’m positive that something will work out.

I have no doubt that things will work out.
That cannot be guaranteed. I know other folks who tried for more than 20 years without really succeeding.

That’s the general idea, but let’s avoid being clones! The same is true for me. It’s true that you can inspire people. Never forget to incorporate your unique style and accents.

Determine what the main rivals are missing or where you can cut bottlenecks and pain points. How can you simplify your clients’ lives by automating much of it?

However, doing that requires study, diligence, and asking people who work in the same industry what they use, why they use it, what functions well, what is lacking, and what they would want to see changed. looking through major and specialist forums and subreddits on that subject, LinkedIn, etc.
Instead of trying to sell your goods, conduct study and make a contribution. Some people enjoy answering questions that arise out of interest.
I wish everyone the absolute best of luck!

I visit startup demos and occasionally peruse articles. Then all of a sudden, I have this notion that there are problems and that there are workable solutions. It’s as though I just connected dots that were there all along. It strikes at the most unexpected moment, like when you’re lounging on the beach with a cup of coffee. They ought to be tested because I haven’t produced them as products yet.

Extending the duration without yielding positive outcomes is not only a financial problem; it also undermines confidence, causes fatigue, and sometimes creates resistance to continuing.
In 1999, I began creating an online C++ code generator, and I’m still looking for users. While there is some validity to your statement, “A man who is not himself mean must go down these mean streets,” Although I’m happy that I have some open source code, I’m also happy that it’s not everything. I’m not a concern. I’m learning and I’ll be alright.

I’ve been working on various individual SaaS projects for the past 2-3 years. While one of them made some decent money, the rest didn’t generate any direct revenue.

Aside from that, I’ve earned through freelancing by developing software for others.
I’ve found that making money with your own SaaS products is really challenging because it’s much more than just coding. You can build something great, but then comes the hard part marketing and selling it, which is a whole new skill set.
That said, I feel like I’m making progress. I’ve learned not to spend endless hours coding without putting in an equal amount of effort into marketing. I’ve been focusing more on improving my marketing skills, though it can lead to burnout. During those times, I put my personal projects on hold and stick to my full-time dev job, and maybe do some freelancing if I have the energy.

I worked a full-time job for ten years during that time. only earning $30–60,000 a year. After releasing new things, I burn out. Although the additional money was helpful, I didn’t get over the hurdle of replacing my income until 2022. Covid gave me free time to work on projects.