something bad hapened to my DSi's SD card

when i've get in to my room i've get to open the drawer to take my DSi.
I've took it and then i close up the drawer and after i get down stairs and when i get in to the living room i sitten on the sofa.
i've opened my DSi and i've get to the camera application and then i get in to the SD card album cuz i've wanted to delete some photos.
After that when i've deleted 10 or 8 or 7 photos i don't know and when i get to delete 1 more photo whitch it get deleted then the SD card stucks and then it was left a message that it says : "SD card success Failed" then i've turn it off.
Then i've removed the SD card and then i've blow her and i've putted in the DSi again and after i've open the DSi again and then i've get again to the camera application and again in to the SD card album but then it says : "Checking" and then "SD card access cannot be used" then i've turn it off again.

Then i've put it in it case,i've took it to my hand and then i've get up stairs and i've get to my room again,i've sitten on my bed and then i take off the DSi from it case then i've turn it on for the 3th time and then i get again in to the camera aplication and again in to the SD card album and then it says : "creacting a new file data from the data management" then i turn it off again and i've left it on my bed.
i've get down stairs again and i've get to the kitchen,i've opened the right door of the closet and then i've took the mini laptop from it.
i've get up stairs again and i've get in my room again and i've get on my bed,i've take off the mini laptop from it bag,i've open it and then i've turn it on.

after that i've removed the SD card from my Dsi and then i've put it to my mini laptop for importing all the photos from it and 1 flipnote that i've saved it as a gif file 2 times so it imported to the laptop 2 times and that flipnote was created by Alink and the 2nd flipnote was with Zelda & Drew (sonic version) who it was created by Stella/Karu/Bailey that i was saved it as a Gif too when i still was 11 years old (sorry for it i've did this cuz i didn't knew that the gif file it's to save your flips in to the computer sorry).
and then i've fixed the SD card after 2 hours cuz in my SD card the photos with the 4 of the flipnotes were 6455 stuff.
and via my old mistake the 4th flipnote whitch it was imported in my laptop too it was a flipnote with Amy who it was created by Alina and again via my mistake i were save it as a gif too when i still was 11.

but the importing i've removed the SD card from the laptop then i've blow it and then i've putted it to the DSi again,the i've turn it on,i've get in to the camera aplicattion and then in to the SD card album but then it was still says "Checking" and "SD card access canot be used" then i've turn it off again and then i've removed the SD card again.

I've blow the Sd card again and then i've putted it in my DSi.
i've turn it on again,then i get in the camera aplicattion and then in to the SD card album but this time the SD card get fixed.
then i get in the camera album and then it was ok then i've get out of it and out of the camera aplicattion too.
Then i've get in the Flipnote Studio and then i've get in the SD card with all the flipnotes that i was saved by Flipnote Hatena.
then i've get in the system memory of it and then i've deleted the awfull flipnotes of mine and the flipnotes of it whicht i were save them in the SD card last year.
when i've deleted them i get to the SD card again i've Saved in the system memory the 5 of my fav & awesome flipnotes of mine and after that i've get out from the flipnote studio and then i've turned it off and i've put it in the drawer.