Would you trade queens here or keep the pressure?

Would you trade queens here or keep the pressure? Stockfish shows 6 point advantage for black keeping queens on the board. If traded, black is still 4 points up and to me it looks like a clearer game. What would you have done here? Black to move.

Both are large advantages for black as you say. The "old me" would have loved endgames and tried to go out of my way to exchange into winning endgames, so ...Qh5 would have been appealing when I was like 1800.

However, the "current me" barely even looks at the retreating ...Qh5 and sees much more appeal with ...Qd3. The idea of ...Qd3 is still on the d2 pawn to hinder white from developing their queenside pieces. I actually made a video on the "Night Attack" and it uses this same motif in a similar situation:

It does not matter. Both win.

And then in a position like this, I am afraid to lose/trade my queen. The answer was to go for the queenside rook. Move 15

In the first game I like black Q E4 pinning the knight, but black should consider castling and then Bishop to F6 to start annoying the white queen too. White is in trouble though. Queen is out and half it's pieces aren't developed.

I wouldn't trade Queens. I'd look to trap it/fork it.

In the first game I think threatening whites queen and pushing it back is more sensible than just trading off. Its too early in game and lots off pieces are still there on the board.

But if you have any plan or strategy in your mind then you can definitely do whatever you want.