Oh, I am great now. While it's not fulfilling, I have a fairly relaxed timeline (since it's the same deadline as the back-end) so I've done some learning, refactoring, cleanup, and extensive testing without any overwork.

The project is new, so he has to create those 10 microservices from scratch. Someone is helping out managing the infra, but still there's quite a big burden on the dev.

I think some optimal solutions might be to put a manager/dev lead in the middle to help out, let the team self-organize properly (cannot do that though since it's finance) or hire more devs. All of those would take months probably.