clear sticky liquid coming out of genitals when I pleasure myself

Hi

The clear liquid could be pre-cum if it comes out during masturbation.

It is also common to have clear seaman when you first begin to ejaculate.

There is nothing to be concerned about either way if you are just getting pre-cum when masturbating that is normal in the early stages of puberty and if you are ejaculating clear seaman that is also normal and very common in early puberty.

For 13 it sounds like you are developing just the way you should be.