Why is my cat drooling so much and leaving wet spots everywhere?

Hi there. I am so sorry to hear about Habla's drooling issue. When any animal is drooling in an area where rabies is a possibility, I always check to make sure the animal is vaccinated against rabies, and doesn't have any potential rabies exposure, like going outside all the time where there are stray or wild animals around. This is the most important thing to touch on first, since rabies is transmissible to humans, and can be fatal.
If Hebla doesn't have any possible exposure, and is also vaccinated, then let's move along to the first two things that come to mind when cats are drooling. I usually find that there are either dental issues - diseased or fractured teeth, or nausea - from eating something out of the ordinary, or from infection or metabolic disease. I think it would be best to have Hebla seen by her veterinarian as soon as you can. They can make sure she isn't eating something caustic that can bother her mouth, make sure she doesn't have an infection of some kind, and that she is healthy otherwise. The vet can also check her teeth and make sure she doesn't have any fractured teeth or dental disease. Some cats, even young ones, can develop dental conditions that can cause chronic mouth pain and drooling. I hope you find this answer helpful. Best of luck!