Thank you all so much!
I have Curlformers but they are a lot of work because I have a lot of hair and it is too long to fit in them, but thank you for the suggestion!
Also I have a diffuser and that doesn't seem to help me with curls... I might be doing it wrong!
I will definitely try the protein treatment and the mousse and maybe still give CG a shot. Hopefully my hair will look like this afterwards!