Havent Bought a Car in 12 Years

I need to buy a new car and am looking for some pointers or suggestions.

Mv current car is a 2011 3.6L V6 Altima that I absolutely love

Dark Grev exterior with leather seats.

The problem i have is that I dread having to do things like this

I generally view mv vehicle as a tool and dont get excited about the prospect of a new one.

Its to the point where I can't even decide if I want another sedan or am open to an SUV

Does anyone have any suggestions or pointers?

There is a dealership by me that has a nice looking 2019 BMW3 series with low mileage but its not certified.

How much does that matter?

Any help is greatly appreciated. Just trving to cut down on the anxiety thats involved with a big decision I dont make very often.

Not sure how much this matters but I am able to pay cash if that changes any of the advice

Thanks in advance