If you want money, maybe try to become a product manager. They actually make more than senior engineers at companies like Google.
Like others have said as a Project Manager you can easily make 6 figures with experience. If you do Agile sprints you already know how the developers split their tasks up and should have a good understanding of the working environment. Maybe start looking at the check ins the developers make for the sprints that you manage. You can see what's involved and if this is really something you want to do.
I feel like you already have a path to make money as a Project Manager, why start from square one at something that is harder and less respected (at non tech companies at least).