Lost Photos and notes

I lost my photos and notes when i Got my new iPhone and the problem is that i haven’t backed them up on my old iPhone because i didn’t have enough storage and i really want my old photos and notes back. What do i do now because they are not saved on iCloud backup and i have no idea how to get them back:( I didn’t Think that if i haven’t backed them up that i would Lose them. This is the first time that this have happened to me