I certainly don't think there's anything wrong with watching porn. It's not up to other people to decide what you do with your sexuality: as long as you aren't hurting anyone, or consenting to anything which you are too young to legally consent to, then it's your decision to make!
However, you should be aware of some of the unrealistic standards the majority of porn videos live up to. The vast majority of men and women don't look like porn stars; in many cases, the porn stars themselves don't look like porn stars. So it's important not to compare yourself to male porn stars, or expect women to look like female ones.
Most porn videos also give an unrealistic representation of women's sexuality, so if you're looking for performance tips, ask your partner, another woman who's happy to discuss it, or a guy with experience. Porn will try to tell you that women will enjoy whatever you do to them, and it's not true.
If you're watching kink porn, then it will often display very extreme, violent fantasies, which you should try not to get too desensitized to. Kink porn also tends to omit the safeguarding and aftercare parts of kink scenes, which are extremely important. Again, if you want more info, there are educational resources online - porn is not one of them.
So basically, enjoy porn as much as you like, but don't take it as sex education!