1. Get a MS in CS (part-time) degree. It will go a long way in solidifying your role in technology industry specially if you want to be in development and as individual contributor.
2. You have another 15 years of runway before you are considered as "over-the-hill" if you remain in development and as individual contributor. Focus on maximizing income, maximizing savings, building "expertise" that you can later leverage as consultant, building persona, and building "revenue generating" side projects.
3. Don't chase the next "fad" instead focus on an established and growing domain such as data science, security etc. which you expect to be around with demand for next couple of decades. Think of in terms of what is the outlook for next 20 years instead of whether entry requires 10 years experience. Pick one and stick with it for next 10 years at least.
4. Be visible in the domain you chose. For example, through conferences, books, articles, blogs, open source contributions, and discussion lists.