doesn’t it make just as much sense for him to have resolved the mission he set himself on before returning to Yoda?
But, again, Lando and Chewie are the ones who took off on the mission to find Han. Luke opted out saying "call me when you find him."
It just makes sense that in the meantime he would return to Yoda. Charging off again after failing last time makes it seem like he didn’t learn anything from his previous failures.