I cannot deny how painful it was in the very end, when I realised — just as a couple of times before — that it was all a non-essential effort for the world. I literally was isolated in this activity and had no feedback from the outer world.
To conclude, an iPad can be a great hand and mind extension, especially for studying, but be careful with the subjects you choose for your experiments. Maybe sometimes it's more useful to play PUBG and stay calm (fuck).
The problem was only that I did not learn anything to the extent that it would drastically change my life as I was hoping. Though, as MF DOOM would say, if I count this as a lab experiment and not a life-changing endeavour and last resort of Mr. Max to attain — then it's not that bad.