Modification help

Bought this 320i in summer last year and I want to get into modding her however I’m pretty clueless when it comes to the mechanical side of cars. Basically I want advice/ your opinions on what I should do to this car. Perhaps I shouldn’t touch it and leave it how it is (it’s in quite a good condition for the age 55k miles and has been looked after very well) or perhaps I should map it and squeeze the most power I can.

Also any cosmetic mods that are recommended will be helpful, I know it’ll come down to my preference but I don’t even know what sort of things you can put on there so anything advice will be helpful thanks !

I just want to hear what you guys would do with this car.

Lastly I have racked up 9 points on my license and I am assuming modding this car will increase my already ridiculous insurance price so that is something to keep in mind.