One last word of advice - don't watch the stupid estimated mileage meter. Over time, it gets less and less accurate actually. The better measure is how many kWh you are using and how that maps to the % of the battery (also keep in mind it does not factor in HVAC/sentry mode, BMS needs, vampire drain, etc.).
My Model 3 would constantly jump from 300 to 310 to 280 to 290, etc. miles of available range. It's the car's guestimate and if you don't charge to 100% each night, it actually sort of forgets there is more room to spare lol. There are a bazillion threads on it.
So, yeah, just enjoy the car, because unless you plan on owning it for 10 years, you can do whatever you want to it, really. And it's actually incredibly difficult to calculate degradation, which is why most people have no real clue until wayyy into ownership, (10 years and 100K+ miles) and they start to see some loss. But you're very unlikely to get there.