just got 61plate with 41k an just wondering what i should be doing as i really am bad with what to do with cars an want to make sure i change a few things to it encase ny damaged happens in future so any advice on anything thanks

Stick to the service schedule but get the oil and filter changed more regularly.

I only do low mileage and get mine changed every year regardless.

I have a local indy that does it including engine flush and fuel additive for £150

If the car is still under any warranty avoid major upgrades to the engine and suspension, try to keep her as standard as possible and only do cosmetic stuff like interior, lights and other minor enhancements.

As said above just stick to the service schedule. They are well built cars and should look after you. I did a major service on mine at a local independent specialist. Worked out about £100 cheaper than main BMW dealer. The obc should also say when oil etc... needs changing.