2-4 months is the key period for Siamese cats to grow up. A well-educated Siamese cat will be a sensible and polite cat. At this time, the cat is the time for the mother cat to teach the kitten hunting skills. Without the mother cat's instruction, she will instinctively train herself on moving objects, so she will pounce on people. You should stop it in time and scold it seriously, but don't be too harsh and don't fight. Buy some toys and train it to bite toys instead of attacking you.
Siamese cats also have regular nail clippers or cat scratch boards. Spend at least ten minutes hugging and petting it every day, so that it can become a good clingy cat in the future. If it bites you while holding it, you should flick its nose or forehead with your finger and stop it directly. If it doesn't bite, you can give it your hand again, and it will bite you and play again, so it will know that it can't bite again.
When the cat does well, reward it, such as delicious food or touching praise. Cats are smart enough to understand what you mean. After such training, your cat will not bite, and it will grow into a smart and sensible cat.