Hello_there

It’s an opportunity cost thing. You could sell them and get some money from it. Do you like having those games and the thought of playing them? Or the idea of collecting one more? Or would you get more enjoyment or use out of the money you would get?

Look at the tom Scott two generals problem video

Anki is a flashcard app that can help with memorizing vocabulary.
Watch media in English with your local language as subtitles. Or the opposite.

“the keyboard and touchpad make me angry”
I think you need to try this out with an open mind. Plenty of people use laptops as their only computer, only with trackpad. Plenty others just toss a Bluetooth mouse in their bag and use that.
I get using a PC, but a laptop does have its advantages.

Trades are a good option if you like figuring things out and if owning your own business sounds good to you. There’s tradeoffs to that, but we’re always going to need more welders, plumbers, HVAC, electricians.

Go to Japan and find out.