I need add adsense above first paragraph

help me please

Hi there,

You can use a hook element:
https://docs.generatepress.com/article/hooks-element-overview/

The after_entry_header hook should be above the first paragraph:
https://docs.generatepress.com/article/hooks-visual-guide/#single-post

but i need below first paragraph, how do this without any plugin

Hi there,

Doing this without a plugin would be quite complex I think. This might help: https://wordpress.stackexchange.com/questions/74235/show-content-after-the-first-and-second-paragraph

not work for me, have you any idea how do that ?

If you aren't comfortable with coding at all, then a plugin solution is the way to go:
https://en-ca.wordpress.org/plugins/ad-inserter/