Will i survive without a car?

I'm moving in with my sister in Greater Uptown area this month, I don't have my license yet and want to know how hard it will be. My biggest concern is safety, I currently live in Poland in a big city but public transport is amazing here and i have never once felt unsafe at night here so i'm very inexperienced with living in a bigger, less safe city.

Any advice?

for any context if it matters i'm a 20 year old girl and getting my license is a priority but i still have to manage for a couple months prior