There will always be people out there suffering and hurting, who are beyond Deku's capacity to help. That doesn't invalidate the work that heroes do, however; if they can't save everyone ...
Heroes of Class 1A return to work in Chapter 428 ... When Ochaco decided to take a moment for herself and let out her tears, Deku was there, right in front of her, and now, an exciting moment ...
My Hero Academia volume 42, the final installment of the manga, was recently released and introduced minor modifications along with a new chapter, the now-famous chapter 431.