6-7 meters long,
That’s not a good idea. 2M or shorter is just about right. That used to be a printer cable.
The only way to split your voice from the house noises is remove the house. This is why people record their voices inside closets, under beds, and backs of cars.
Here’s one possibility.
You have to get your voice up to good volume or the electronic noise of the microphone is going to mess with your sound quality.
The two knobs on the side of the microphone are for your headphone volume (plugged into the microphone) and the mix when you decide to sing harmony to yourself. Neither one affects your voice volume during a recording.
Koz