How to avoid getting checkmated in ten moves

I accidentally got checkmated in ten moves. Does anyone have advice on how not to lose so quickly?

Game:

I was black. Also, I didn't want to lose the rook.

7... Qa5 looks a bit better. Prevents the knight from hopping into c7, pins the c3 knight...

I don't play these lines, and I only found out about 4... d5 recently from @chessy64 who might have helpful advice in this line.

Edit: I think I remember them mentioning something about 6... N-d4 7. B-d4, e5

Otherwise... Experience is the long and short of it.

7...Qa5 is more active
8...Qxd1+ gives him the d-file, better 8...Bd7 developing the bishop and connecting Qd8 with Ra8
9...Rb8 saves the rook, but loses the king
At the end of this 15+0 time control game you have 14 useless minutes left on your clock, i.e. you played as if it were 1+0 bullet.
Slow down. Take time to think.

Play better moves? Sometimes it happens I have been mated in less than 10 moves mostly from not paying attention.

@mylittleb When playing as black, beware of an early showdown, which almost always leads to White’s advantage, as they are ahead of Black in development. Therefore, the move d5 must be condemned. There is a way to avoid a direct collision in the center, for example, by using movements such as: e6; a6; g6. Playing more carefully, you can make a mistake not on the 8th, but only on the 15th move, this will increase your self-esteem.

or your self-steam

As black, you played the Sicilian, where typically you get behind in development and are willing to face an assault on your king in exchange for a better pawn structure and counter-chances on the queenside e.g. Rxc3 sacrifices. This is a fine opening but must be played with extreme care!

You then proceeded to bust open the centre with ...d5, which is totally the wrong plan when behind in development, then played ...Qxd1, helping your opponent develop more whilst doing nothing to help your king out.

Basically, I recommend playing 1...e5 against 1.e4 which will help you learn to develop your pieces. Save the Sicilian for when you have the basic principles understood solidly. Another approach to avoid getting mated early is to try solid openings like 1...e6 or 1...c6.

Here's a quote from an interview with Levon Aronian when asked "Which are the most solid variations in the Sicilian Defence?"

"I think that’s a question it would be better to pose of players who play that defence regularly. For me, someone used to calmer openings, all the Sicilians seem lethally dangerous. "

That's a 2700+ talking.