Help plz...

I was very careful with the mushroom growing kit I bought;

1. Ten days compost alone moist in dark,

2. Add mushroom-compost. Keep it moist.

3. Immediately afterwards, tiny 1/4 inch buds popped up.

4. I moved it into my room which from 7am to 11pm

is at 23 - 25 degrees. At night it can drop to 20 (Isthat ok?)

5. I was careful not to overwater it, keeping it rather dry

in a corner of my room, not in direct sunlight.

6. The buds stopped growing completely. :-(

7. Maybe not enough water?

What did I do wrong? Have I ruined it?

Thanks for any advice.

Tony