Career advice - 13+ YOE as account manager on SSP side. What should I do next?

Hi,

Since the beginning of my career in 2012, i have been working in ad tech industry mostly. I've worked for two companies on SSP side for over 10+ as an account manager and 3 years in between were for a digital marketing agency.

I'm on a career break currently. Can you help me with following -

1. Recommend any upskilling courses, that can ensure I'm up to date and employable
2. If I've to pivot - what roles can I pivot in.

I've primary dealt with SMB pubs based in US & UK and brief experience of working with enterprise pubs.

Let me know if you need any more details from my end to share guidance.