Dos and don'ts for 2-4 year old PMs traversing current markets

(other than 'switch to engineering')

Some things off the top of my head:

1. Should you look past India? MBA/MS in Europe/USA
2. Switching to P&L roles
3. Industries to go after/stay away from
4. Things to look out for while joining a company
5. Should you join early startups/late startups/mature companies
6. Career frameworks that have worked well for you
7. What does the future hold? Next 5, 10, 20 years

Feel free to share anything else.