Waiting.

In these last days I've been so bored. However, I'm enjoying my vacations.
I've used my time to investigate a lot of things about English.
I just have four days to sleep in, because I'll have to entry to the get back to school again and return to my typical routine.
I hope I have sufficient ("ENOUGH" serìa mejor en la lengua hablada) time to can study English in my free time.

Muy bueno ;-)

Edits Below:

I've been really bored the past couple days, despite being on vacation; which I'm throughly enjoying.

I've utilized my time finding out more about the English language. 

I only have four days to sleep in, before I go back to school and have to endure the usual routine.    

Waiting.

In these last days, I've been so bored. However, I'm enjoying my vacations.
I've used my time to investigate a lot of things about english.
I just have four days to sleep in, because I have to entryenter to the school again and return to the typical routine.
I hope that I have sufficient time to can study English in my free time.

Good job! :)