1 Peter 5:5 Yes, all of you be submissive to one another, and be clothed with humility, for "God resists the proud, But gives grace to the humble."
Humility involves admitting that something is wrong. It also involves submitting to other Christians. Here in the Gringo Zone of Mexico, we have a few retired Christians who really do want to reach Mexicans for Christ. They are usually meeting with little or no success. Meanwhile, two churches are running a Saturday morning Sunday School that desperately needs more drivers and vehicles; but these other Christians won't help.
Helping would involve working under someone else's direction. It would mean doing work that someone else would get credit for, because the helpers aren't the leaders. It would mean that the people doing the driving wouldn't get to set the direction that the Sunday School is going.
But it would also mean getting more results than the majority of missionaries are getting. Do you want to be a success for Christ? Find someone being blessed by God, and see if you can help that person.