I played 5 great moves but still lost the game.Sigh
Post your games here :)

It was a good game.
Really good game! You played amazing and I didn't see any obvious mistakes. I see you played 4.Nd2, I don't know if that's theory or not but maybe you might want to try out 4.Bg5 as another option. 4.Nd2 is a good move though. One thing to note when playing Nd2/Nd7 in the modern though, is that f2/f7 becomes weak, for example here is a famous trap when black plays Nd7 in the modern.
This opening trap can work against the white pieces as well. Just something to be aware of, great game!
What do you set your depth at while using engin usually?
I use the chess.com engine which I usually put at a 29 move depth.

What's the best move for black?
If it looks like that your opponent is giving up too many free pieces, don't accept it, it might be a gambit.


What's the best move for black?
This is a danish gambit and you just completely fell for it. It is where the opponet gambits low-key every pawn.

I saw you had many problems you needed to fix. First of all you need to look for your opponents own blunders. For ex: on the 11th move your opponent castled and that blundered his bishop. When it comes to those situations it is as simple as counting both the attacking and supporting pieces. Your queen was supported by your rook and his bishop was only defended by his queen meaning you could've safely taken. Also avoid making blunders of your own(I know that's pretty obvious) by checking the board before every move. Make sure that whatever square you put a piece on is safe there. This will help reduce a lot of those blunders.
Really you don't need to focus on anything too tactical and much strategy right now. Instead your only problem right now is blundering and failing to see your opponents own blunders. Just by doing that you will definitely be able to become much better at the game. =)

What's the best move for black?
bf4+ is a discovered attack on the queen.

What's the best move for black?
If it looks like that your opponent is giving up too many free pieces, don't accept it, it might be a gambit.
Not all the time. Accepting a gambit isn't always bad. Some gambits are actually worse to decline than accepting and others are better to decline than accept.

I saw you had many problems you needed to fix. First of all you need to look for your opponents own blunders. For ex: on the 11th move your opponent castled and that blundered his bishop. When it comes to those situations it is as simple as counting both the attacking and supporting pieces. Your queen was supported by your rook and his bishop was only defended by his queen meaning you could've safely taken. Also avoid making blunders of your own(I know that's pretty obvious) by checking the board before every move. Make sure that whatever square you put a piece on is safe there. This will help reduce a lot of those blunders.
Really you don't need to focus on anything too tactical and much strategy right now. Instead your only problem right now is blundering and failing to see your opponents own blunders. Just by doing that you will definitely be able to become much better at the game. =)
Yeah, I just started at chess and I am still 300 elo.

https://www.chess.com/live/game/140243388606 Can anyone help me improve and understand how to make sure I make good moves.

I saw you had many problems you needed to fix. First of all you need to look for your opponents own blunders. For ex: on the 11th move your opponent castled and that blundered his bishop. When it comes to those situations it is as simple as counting both the attacking and supporting pieces. Your queen was supported by your rook and his bishop was only defended by his queen meaning you could've safely taken. Also avoid making blunders of your own(I know that's pretty obvious) by checking the board before every move. Make sure that whatever square you put a piece on is safe there. This will help reduce a lot of those blunders.
Really you don't need to focus on anything too tactical and much strategy right now. Instead your only problem right now is blundering and failing to see your opponents own blunders. Just by doing that you will definitely be able to become much better at the game. =)
Yeah, I just started at chess and I am still 300 elo.
oh ok. np!

https://www.chess.com/live/game/140243388606 Can anyone help me improve and understand how to make sure I make good moves.
Sure! However It would be easier if you just sent the game showcase here instead of the link. I have instructions on the first comment if you need them

You've made some improvements but remember you still need to work on blunders. I think that should be your top priority as of right now.

What's the best move for black?
This is easy Bb4+ wins the game. I assume that white thought Qxd8 was a free queen

What's the best move for black?
This is a danish gambit and you just completely fell for it. It is where the opponet gambits low-key every pawn.
He did not fall for the danish gambit, his opponent fell for Bb4+ and after Qd2 Bxd2+ he is up material. Actually calculate before making assumptions
It was a good game.
Really good game! You played amazing and I didn't see any obvious mistakes. I see you played 4.Nd2, I don't know if that's theory or not but maybe you might want to try out 4.Bg5 as another option. 4.Nd2 is a good move though. One thing to note when playing Nd2/Nd7 in the modern though, is that f2/f7 becomes weak, for example here is a famous trap when black plays Nd7 in the modern.
This opening trap can work against the white pieces as well. Just something to be aware of, great game!
What do you set your depth at while using engin usually?