on (one's) own hook
Without requiring or having been given instruction, prompting, or guidance from others; by one's own effort or energy. Few things impress employers more than implementing business solutions on your own hook. I just think Jennifer needs to do things on her own hook more, instead of waiting to see what her boyfriend wants to do all the time.
on one’s own hook
mod. all by oneself. I don’t need any help. I can do it on my own hook.