I can only speak to my experience, but I got lucky that “CSM” really started evolving as a role around me and I was basically already doing it, so it was an easy transition. That said, you’d need to go back to a customer facing role. I know there are Associate CSM roles now which I think is basically an entry-level csm role. It might be easier for you to start talking to people within the company you are currently at. If they know your experience and skills, it would be easier to go for a role change from training to csm. Once you have that first CSM role under your belt and on your resume, you’re in. Then just work your ways up the levels of csm.

Seconded on this. Customer Service sucks when you start out because you have to deal with a lot of crap from people. However, if it’s something you’re good at, you can build a pretty decent career moving into Account Management or Customer Success Manager. I started out in a call center back in 2014, now I have a 6 figure salary as a CSM, and it’s easier than any job I’ve ever had.