IPhone 5c Can't hold more than 8 pictures?

I'm really annoyed because I take a video but after like 2 minutes it says storage full… I only have 11 apps, 0 songs,5 pictures,1 video, and my capacity is 5.3 MB

Its not the number of apps that matters in terms of space, its how much space they take. Check the Usage in the Settings to see. Of course since your capacity is 5.3MB that's barely 5 pictures from what the 5c can take depending on conditions.