The Matrix is real.

Yup. I understand this. I'm all about mind control (my own, not others ). I think the practice needs to be done in stages.

Stage 1: control your thoughts.
Stage 2: control your emotions.
Stage 3: control your sensations.
stage 4:...

...and it goes on to higher stages. I've more or less mastered stage 1 - stage 2, I struggle with (I'm a very moody guy), but in theory, if you can master your thoughts, you can create whatever perspectives, attitudes, self-talk, etc. that you need to in order to effect your moods. The challenge is that your emotions also vie for control over your thoughts, making you think all sorts of irrational things. If you can quiet these emotionally driven thoughts, you will have mastered stage 2.

Stage 3 is only hypothetical, but can you imagine having such great control over your own mind that you can actually bring about hallucinations at will? If I want to see an apple sitting on the table, I would just project it onto the table by creating the visual experience of it. If wanted to pick it up and eat it, I would just create the sensation of touch I would feel if it was a real apple, and create the sensation of taste I would experience if I was really eating it.

I would expect a fourth stage would be mastering how to induce these hallucinations in such a way that they don't conflict with whatever reality exists "out there". For example, someone who believed they could fly might try jumping off a 5th story balcony only to secure a bloody death in the near future. This would be the reality "out there" preempting or deny him the reality he created "in here". But suppose all he did was sit in his living room in the lotus position and hallucinated himself walking out onto his balcony, take flight, enjoy an airborne tour around the city, come back home, sit back down in the lotus position exactly where he was when he began his hallucination, and then come out of it. In that case, reality wouldn't do a thing to disrupt his self-induced world because, in reality, he wasn't doing anything but sitting there. As far as his POV is concerned, it makes no difference.

Any stage after 4 would probably be exploring worlds created by novel experiences that I would call "non-human" - meaning experiences the human brain cannot have in its most natural state (psychedelic trips are an example).

As I said, though, this is only hypothetical. Who knows if anything beyond stage 2 is possible.