New chain ring combo on me langster

Adding new links to a worn chain could result in problems. Depends on how worn the old one is. Maybe better to get a new chain. And +1 re 42 to 46 being a big jump.

I'm in a similar situation, starting to properly spin on long sections. What would be a better combo to upgrade to (currently on stock 42/16)?

Or is this a case of working out my ratio currently and going from there? I'm still a bit new at this.