new guy here. need help on how to start.

hi everyone,
i recently got this inch for an hho generator, as we all know gas prices are way up so Ive take the challenge to built my wet hho generator but i don't have a lot of knowledge.
i have attempted to built one but it doesn't produce a lot of bubbles.
what i did,
i used 316 stainless still mesh hat came out of some gutter glove guard very fine mesh, i figure i would get more surface from it than a plate. i cut 2" by 4" rectangles and used egg-crate to get two sides to it using zipties.
am using a 18v battery just to try it.
any help or advice will be greatly appreciated