You did loosen the nut first, didn’t you? You are adjusting the steering box?

Scratch the cabin and air filters too . Go to autozone and then watch a youtube video. If you are just starting out servicing a vehicle, the brake fluid may or may not be something for you to attempt. It will depend on your mechanical aptitude, tools you have and a safe pave to work. Watch a video or two on that as well. Be honest with yourself when you see what is involved in doing the fluid change. Brakes are definitely not something you should attempt if you are not sure what you are doing.