therefore what need have we of gods help?

I think the correct saying is that God helps those who love him and are called according to his purposes.

I have often heard this saying used by the self-righteous to disparage people trapped in vicious cycles (like addiction), to justify doing nothing to help them, but instead sit in judgement over them.

The sin of those who "help themselves" is every bit as grave as those who don't make the "right choices". The meek shall inherit the Earth. The first shall be last and the last shall be first.

I like consuming self help material to make my life better, especially content from Jocko Willink, Jordan Peterson and so on..... But the "lift yourself up by your bootstraps" message is not Christian.