Deep clean

So ladies I want to deep clean my house. What is the toughest SAFEST cleaner to use? My bathroom is really bad no matter how many times I clean it residue, mold, mildew, rust stains, soap scum, and build up never go away😭 plus my sink is always a mess! My husband has a bad habit of using a lot of tooth paste and not wiping the sink after.... My white sink is blue.... That's how bad it is PLEASE HELP ME!!!