How do I make my cat stop doing this

My cat whenever I walk into my room my cat TRYS TO SIT ON MY FISH TANK and the top of the tank is plastic so with my cats panda size body almost breaks the tank and whenever I close my door (my door is broken) then my cat runs in my room and jumps on the tank how do stop her doing that

Get a spray bottle and fill it up with water. I think you know the rest. worked on my cat from doing things they shouldnt

Try putting aluminum foil on top, cats hate the sound when they jump up and it scares the heck out of 'em. If that doesn't work take some double sided tape and cover the whole top surface with it. Nobody likes sticky paws

try putting a hard lid on it instead of stuff that can break