@1
"I really don't know some good openings." ++ You do not need to
"center defence(probably attack)" ++ Bad
"queens Gambit" ++ Good
"king's Gambit" ++ Bad
"Napolean attack" ++ Bad
"i don't have anything when i play from black" ++ A defence for black is more important than an opening for white.
"how to improve my game" ++ Analyse your lost games and learn from your mistakes
"some new and good openings" ++ Queen's Gambit is good for white and you can also use that as black. As black against 1 e4 simplest and best is 1...e5.
"tactics" ++ Comes from analysing your lost games
I really don't know some good openings. I usually play the center defence(probably attack), queens Gambit, king's Gambit ( yes i am crazy ) or the Napolean attack. They aren't some good openings and i don't have anything when i play from black. I was into chess during the lockdown but i stopped and now i am beginning to play chess again. I would really like some suggestions on how to improve my game, some new and good openings, tactics and how to play chess without needing a cup of coffee (cuz i am an insomniac)