For me, the cause of burnout was working for someone else instead of being an owner of the output of my labor. It feels totally different.
I quickly realized 'doing' is the only thing that matters, not 'ideas' nor 'thinking about doing'
how do you promote the products that you make?
I promoted them wherever the people hung out, like particular subreddits with high concentrations of my target audience.
There is no guarantee it works, but life has been better since I started down this path.