Did you know that DSBrick isn't actually that dangerous? Or that FlashMe only puts you more at risk of bricking? Well, you'd better get reading then!
https://gbatemp.net/blogs/dsbrick-is-safer-than-you-think-and-flashme-is-a-lie.19645/
https://gbatemp.net/blogs/dsbrick-is-safer-than-you-think-and-flashme-is-a-lie.19645/
Or getting more RAM.