Press fit can be tricky. I’ve made things that go together perfectly one day, and after the wood experiences temperature and humidity shifts, it no longer fits. I have better luck making them deliberately a little loose and relying on the magic of glue.
There are some more clever ways of doing it – if you search the forum for words like “locking tabs”, you can find a lot of past topics. Even @dan himself has gifted us one approach: Serrated tabs - no more glue