Two-boxing is like always trying to fit in with every social group.
One-boxing is like doing more of the thing that you want to do, regardless of what they think. They might get mad at you, but in which case you won't interact with them anymore and then in the future you'll more frequently get into situations where you can be yourself.
The solution I use is mostly to just do the thing I want and let other people themselves around me. (This has some professional consequences though etc., but it also makes it such that energy is never really a concern for me. I just don't interact with people it's hard for me to interact with.)
There's a Newcomb Problem here.
Two-boxing is like always trying to fit in with every social group.
One-boxing is like doing more of the thing that you want to do, regardless of what they think. They might get mad at you, but in which case you won't interact with them anymore and then in the future you'll more frequently get into situations where you can be yourself.
The solution I use is mostly to just do the thing I want and let other people themselves around me. (This has some professional consequences though etc., but it also makes it such that energy is never really a concern for me. I just don't interact with people it's hard for me to interact with.)