what's openings you suggest for beginners?


For white: https://www.chessable.com/my-first-opening-repertoire-1e4/course/188863/
For black: https://www.chessable.com/counterblow-a-complete-fighting-repertoire-for-beginners-/course/199358/
Those courses were truly made for beginners in mind.
Also u might wanna check out this playlist to study:
https://www.youtube.com/watch?v=AshEhLcPHqU&list=PLQKBpQZcRycrvUUxLdVmlfMChJS0S5Zw0
And this for practical games:
https://www.youtube.com/watch?v=axRvksIZpGc&list=PLUjxDD7HNNThftJtE0OIRFRMMFf6AV_69
Good luck on your chess journey!

Avoid "system" openings like the London System. Among weak players, system openings act as a substitute for thought, a way to avoid the necessity of thinking. You are trying to improve your chess skills, so you shouldn't be looking for a way to avoid thinking.
You should also avoid openings that play for traps or cheap tricks. That will teach you nothing.

for e4 openings either do sicilian dragon/najdorf or play e5. for d4 openings: probably play some f5 or normally d5 it. as for playing as white in those openings just develop pieces


Imho, at your current rating you shouldn't care about openings. Play typical first moves such as e4 e5, d4 d5 then try to avoid blunders and the wins will look after themselves. If someone beats you with an opening trap then take care to commit it to memory or you'll miss it every time until you do. When you get above 1000 start thinking about having a go to response for each opening you see, beyond the first move, but don't go too deep with theory that you'll never use.

I would suggest to not worry about openings. They are irrelevant. The only thing that matters is to avoid 1-move blunders.
Your last game:
After move 11 the opening is over, and you are completely fine. Then you throw away a piece for no reason (move 12), then you blunder another piece (move 15), then your opponent loses a rook instead of winning the piece, so you are miraculously winning again, but you blunder a rook (move 19), and that's a blunder too many.
Don't play random moves in seconds. Take your time and try to make good moves.

You should prepare your repertoire according to your own chess tastes and style. It is very important that you should like and understand the typical positions which result from your chosen opening. One good method consists of choosing, as a model, a strong player who plays your choice of opening particularly well and often, and then following his games. You study some model games in order, above all, to get a better understanding of the middlegame.