First step is probably to consider your net worth (so add up all your assets and subtract your debt). This does not have to be exact. Getting a ball park figure is all you need.
Next consider how wealthy you look. To the average person, there is an expectation that a doctor is wealthy. (Maybe the doctor is poor with huge student loans, but still people will expect that a doctor is well off). Again the goal is just to get an idea here.
Take the higher of the two!
Consider your insurance. First is auto because I assume you own a car. Make sure you understand the different categories of insurance and what kinds of issues they protect against. No help here but to go read about them. Here is one place:
https://www.usaa.com/inet/pages/advice_auto_insurance_main?akredirect=trueDo you own or rent? Both are important to have depending on your circumstance. Same deal here, make sure you understand the categories for each and what they cover. Really no hope except to understand what could happen to you and how it gets covered.
So now you've understood what you are protecting and how the insurance covers it.
The only other thing to add is if you are worth or look to be worth over one million then an umbrella policy is a cheap way to extend your auto and home coverage to meet your needs.