Title says it all. Got new third party lights and have been trying to remove these but they refuse to pop out. I feel like I’m gonna break something if I try and force it out. Don’t have a prytool but have been using a flathead screwdriver. Thoughts?

I have a 2020 model 3 (but bought in 2019). I only charge it to 80% now. But it feels like I can barely go anywhere without the battery going down significantly. I have about 90k miles on the car. I saw that the warranty is until 100k miles or 8 years. How to check battery degradation please and has anyone been successful using that warranty ?