PC hacked?

I got to the wrong people and naively left one of them on my laptop so that it gets rid of unnecessary data and becomes faster. Then I was scared, among other things, that they hacked me, which would be very easy in that case. Apart from the fear that intimate photos could appear on the Internet, I also wonder if it would also be possible to attach something to me. I have no idea of anything and extreme fears. Maybe someone knows his way around and can help me?

Leaving a Trojan in the case would be absolutely no problem, especially with direct access (physical or remote maintenance) to the PC.

Well then, a professional should take a look. If he finds what the police report and then the thing is done.

PS.: I sent you a private message.