To get rid of fleas on your cat, you can take the following steps:

Bathing: Bathing your cat is an effective way to get rid of fleas. Use warm water and a cat-specific flea shampoo to thoroughly wash your cat's body, paying special attention to the back and tail area, as these are areas where fleas love to infest. After bathing, dry your cat with a clean towel.
Brushing: Use a fine-toothed comb or a special flea comb to carefully brush your cat's fur, especially around the neck, back, and base of the tail. Fleas often hide in these areas, so intensive brushing can help remove them.
Environmental Cleaning: Fleas not only infest cats but also thrive in indoor environments. Therefore, it's essential to thoroughly clean and disinfect areas where your cat frequently spends time, including bedding, carpets, and furniture. Wash machine-washable items such as duvet covers and sheets with hot water and dry them in a dryer at high heat. For items that cannot be machine-washed, clean them with hot steam or expose them to direct sunlight.
Environmental sprays and medications: Using flea-specific environmental sprays and medications, such as flea sprays, flea spray lamps, or flea insecticides, can help eliminate fleas indoors. Follow the product instructions to use the appropriate dosage and method of application.
Prevention: Using flea prevention products, such as flea collars and flea drops, can help prevent your cat from getting fleas again. Use these products regularly to keep your cat clean and healthy.
If the problem persists or worsens, it is best to consult a veterinarian for more detailed advice and guidance.