i don't want to memorize openings


There is always Chess960 which is the antidote to the monotony of over analysed openings.
I hate studying openings, all the books I have bought on specific openings are just line after line of endless variations that I can never remember or even understand. They always end up unread. As has been said, understand general principles, maybe learn the first few moves of an opening that interests you.
You could make a chess engine play h4 as it's opening move against you and it will still destroy you a few moves later because tactical prowess is more important than a tiny advantage that an opening system may provide.

Hi. Play the Cow opening all the time, as white/black. If you search online for, "defence game Pafu", you should find some information.

I still haven't studied openings. Theory is generally useless in place of fundamentals, endgame skills, and knowing the ideas of openings

Play the london. I used to play the London so many times when I was starting chess, I was 12 years old and a month. Now I don't usually play anymore London, also btw I'm still 12 but I'm turning 13 by November.

There is always Chess960 which is the antidote to the monotony of over analysed openings.
I hate studying openings, all the books I have bought on specific openings are just line after line of endless variations that I can never remember or even understand. They always end up unread. As has been said, understand general principles, maybe learn the first few moves of an opening that interests you.
You could make a chess engine play h4 as it's opening move against you and it will still destroy you a few moves later because tactical Snake Aim tool app prowess is more important than a tiny advantage that an opening system may provide.
Sure, if you search online for "defense game Pafu," you'll find some information about playing the Cow opening consistently, both as white and black.

As has been said several times already, basic principles. Learning openings is useful at master level, but as an amateur it's more important to focus on tactics and not blundering. Amateur games come out of book so quickly it's not worth the time to extensively study opening theory. Maybe learn a few lines or gambits, but it's much more solid to focus on simple, instructive moves that develop pieces to useful squares.