Hello, am taking a career break and need your advice

I need some guidance and would really appreciate if anyone would stop by this post & help me move forward.

After 9yrs of being a corporate employee, I have finally decided to take a break. This break is essential for me, since currently I am 🤏🏼 this close to have a mental breakdown. But this period has also been a tranformational for me. I realised my potential lies elsewhere than the regular 9-5 jobs.

Hence, am deciding to move to sustainable sector. While the idea is still in naisant stage for me, still researching and understanding the sector. I had a few questions, that I need answers for, they are:

1. Should I get into studies again to understand this industry properly? If yes, any recommendation?
2. What type of course will be beneficial for me?
3. Do you have any idea for volunteering programs or websites which has information on this program? Right now, am starting with Himalayas.
4. Would you suggest me to be on any platform which will help me gain more knowledge?
5. What type of seminars or conferences would you suggest me to attend?

These are few questions which comes to my mind. If you have any other valuable insights, you are most welcome to share.

Thank you in advance.