Not saying its 100% happening to me but theres Red Flags.
The red flag would be if you genuinely believe that your wifi router is reading your mind.
That is probably the craziest thing I've ever heard, tbh.
It's made me laugh so many times, but if you really believe that, then it is actually quite sad.
In even the most far fetched sci-fi, that kind of thing could happen, but it would be a vice versa scenario, with some protagonist with 'special powers' mysteriously able to control the wifi with their mind.
Actually, come to think of it, I think work in such areas is well underway, with work on technology being patched directly from the neural networks of people's brains, directly to computers, with applications for the disabled, mute, and paralysed etc.
But it does not work the other way round!
How on earth could it? Please post the link to the 'complicated' video you have mentioned.