Why?

[bvc123q]

The first time i ever mastubated i had huge organsiam but now all i get is this clear white stuff on the puberty test i ranked a 3.7 help!

[Oblivion]

all i get is this clear white stuff

That's all you're supposed to get ;)
The clear is the semen, the white is the sperm in the semen.
If there was more white in your first ejaculation, it was probably because you had built up more sperm. After you started masturbating frequently, your body didn't have enough time to fully produce sperm before you masturbated next.

Your first orgasm might have felt better, because A) you've never experienced it before, or B) you now masturbate more frequently which reduces the overall experience of each ejaculation.

It's nothing to worry about, but without your age, we can't determine whether 3.7 is in the norm or not.