Depending on the situation of your teeth! Bleaching is recommended only if you have severe stains or fluorosis otherwise I wouldn’t recommend u to go for bleaching as it causes sensitivity to teeth also makes your teeth porous and can increase the chances of your teeth becoming yellower! Later or absorbing more stains
Next Steps
Please visit a dentist and get it checked if u just need whitening polish or you need bleaching
Other options are there as well! That can be suggested once u visit a dentist