With only 2 developers, CI/CD can be your best friend. Automate the daylights out of testing your code.
Remember to tag your regression tests in some way - any test that is preventing a production bug that actually happened needs to be marked as a 'regression' and treated as high priority to keep passing.
Treat all others tests as more art than science. Keep the reliable ones, toss out the brittle ones.
Look for a network traffic recording/replay library for your toolchain. Reusing integration tests as unit tests is a huge time savings.
If you have live data access, build yourself a few charts that represent a typical day. Knowing what "normal" looks like in your database can be priceless on a weird day.
FYI, there's one key way that Discovery season 1 doesn't feel like proper Trek that is a setup for a huge plot twist in season 2.
It might not redeem season 1 for you, of course. But it did for me.