Should I get a second phone for business?

I didn’t think much about it at first,but over time my personal number has kind of turned into my default for everything:clients,quick calls,even things that probably shouldn’t be coming through
after hours.
It’s not completely out of control, but I can feel the boundaries getting blurred more than I’d like.
For those who’ve been in this position,what made you decide it was time to separate things?