Want to switch careers

I have been in the pest industry for 15 years now. Worked my way up from technician, to supervisor, to eventually Bramch Manager. While the job is stable i am completely exhausted by this industry, especially ever since my company merged with another. Im scared to switch careers because I have no other discernible skills outside of this job. Im nearing 4p years old and would have to start all over from scratch.

For anyone that has left the industry: what was your next path in life. What would you guys recommend for obtaining new skills to enter a new field? ​