I went overboard with a prostate masssager could this be bad?

Hi there everyone about a month and thirteen days a go i was using
a prostate massager i own called the "progasm Ice" which is fairly large
in size and seems to have large pointed head, i had it in me and i was
lying on my side and things where really going, but for some stupid reason
i decided to lie on my stomach, then for some stupid reason i got too carried
away and started thrusting the head of progasm ice harder into my prostate
using my hips becasue it gave a fuller feeling i dont know how hard i was
pushing at the time i dont think it was too hard at the time but now it
has become apparent that i made a silly mistake one which i certainly
will never repeat ever again.

In the few days after i had my session with the massager
the pain i felt on my prostate was quiet bad then it slowly
started to go away and by the end of this month it seemed that
things where getting better like the problem was clearing up and
had almost gone, but now i have masturbated a few times and whenever
i ejaculate i feel some discomfort from the prostate and after i have
masturbated i start getting pain in my prostate which can range from
mild to bad and then then pain seems to calm to a bit and seems to come and go.
the pain is located and the top left hand side of the prostate and in the
bottom right hand side of the prostate.

What i dont seem to understand is why does the problem seem like it
almost gone at the end of the month then all i do is have a bit of
innocent fun by masturbating and it seems to be worse again. Should
this problem be getting better by now and not worse?

Is it possible that i could have done severe damage to the prostate?
i am worried that i have caused some kind of tearing and that this
will leave a big scar and will not heal and which may permanently
effect my ability to have sex or masturbate without pain?

Should this heal eventually and how long could it take? could it take
up to three months? Or is there the possibility that this will not heal
and will remain the same? I really dont want that.

Anyway thanks for the help

Take care and have a great day cheers thecritta