If you can afford the money, do get the necessary certifications; PMP, Certified AWS Architect, etc. Else spend time to revise on the interview questions, there's a lot of resources on GitHub.
In between waiting for the next interview, I am trying to get back into shape, pick up a new hobby or skills, etc. Just to keep my mind back to those negative thoughts.
If you need someone to talk to, drop me an email.