Can sponge make things worse?

Body: 

I am on my 4th day a "trial and error" with the sea sponges.
First day was great- no pain!
Second - back with pain and problems with removing the sponge.
Third- trimmed the sponge, but it did not work too well.
Today is my forth day- I feel the sponge in me (not like in my first day, I felt nothing), I have bit of pain, but also the thought/doubt arrived: "maybe I am making things worse?", maybe the sponge makes the rectocele bigger? I don't know...

It all feels like experimenting. One day, hopefully I will stop asking questions, I will figure it out, but today I still need to share my doubts.

What other people think, can the sponge make things worse?
Thanks,
Ivonush

...wet your sponge and gently push it into the vagina until your
prolapse feels supported. If it feels uncomfortable, the sponge may be
too large. Remove it and trim 1/8th of an inch around the perimeter -
try again until it feels secure and comfy. Your sponge is completely
safe and will not make things worse. love, Jade & Pearl