FORD FIESTA BRAKE

I'm Having Some Concerns About The Noise When I Hit The Brakes It Makes A Grinding Noise.

I Just Changed The Right Front Tire (with Ring) With One (same Side), Now I Feel The Sensor Is Bad As Well.

Brake Pedal Slowly Sinks To Floor And Works Better If Pumped. Installed A New Master Cylinder, New Rear Brake Wheel Cylinders Two Times...

Ok So I Had An Accident In My Car And Took It To A Shop To Get Repaired And Cosmetically My Car Looks Fine. Now It Looks Like I Need Brakes...