"i just want to do X" Or something like "all i want to do is do X"
"All I want to do is lie down and rest"
"I just want to play that game forever"
If I tried to translate that it would be something like
I understand also that this can have different nuances, so for example there is one nuance that's like "this is all that I want to do in this moment" because everything else around you is unsatisfying, and the other nuance being something like "i have no other motivation but this / its not that I want to do Y, I just want to do X"
How would you translate both of those nuances?