Building connections in domains of interest is something one should always pursuit and intensifying this might be the best immediate action to take.
Some other aspects:
- Keep your domain options as open as possible. Do not commit to a new career before securing it. This is vague advice, I know - but focusing on for ex. cybersecurity over general DevOps/cloud engineering with the security vector would be narrowing one's options.
- If you are not prepared financially, be very cautions.
- Manage your expectations, the major factor in a career switching is(IMO) luck and opportunity - over which you have no control but can sorta manage somewhat(ergo the networking).
Changing careers is a very general and realistic goal. Keep the way you go about it the same way.
I've found it very challenging, difficult and frustrating. Wouldn't do it again but glad I did it the first time.
Best of luck!