Just to add, in the future try not to change the water temp more then
about 2=B0F per 24 hours to avoid stress or thermal shock in your case.

I understand how you feel. I went through all that your are right now
back when I was first starting with Bettas. The best thing you can do
is arm yourself with knowledge.

Try www.nippyfish.net - I especially like this site because it's mine.
;-) It's 100% all betta splenden information

Also, I found www.aquamaniacs.net to be one of (if not, THE best site
for freshwater specific advice.) They have a betta board there.

And of course keep comin around good groups. ;-) I hope these resources
will help you.=20

Best of luck.=20
-Christie