Do not deviate from that schedule. Refuse to accept delays, last-time changes, and impromptu visits and invitations. Those things will just keep you from getting things done for God. Help the missionaries by pointing out their mistakes. Bring them up to date on what you've heard are the latest missions trends.
Missionaries can sometimes be stubborn.
So, you may need to enlist some support among the nationals for your views about how the mission should be running. Get involved romantically with someone. Being away from family and friends make this the perfect time to get involved in a romantic relationship. While it may distract you slightly from the work, you will be able to expose national Christians to America's progressive dating customs. Don't embarrass yourself by trying to pick up the local language.