Career- Get the best education you can afford. Get a job at the top company/hospital/school in your region. Work hard, deliver excellence and practice sharing your faith at work (Col 3:23).
Spiritually- Study the Bible and develop an understanding on what is Christ and what is culture, develop a lifestyle of prayer and gratitude, take Perspectives, learn and practice church planting, and develop your theology on suffering for Christ.
Culturally- Work with international students, refugees, or other cross-cultural groups, learn about other cultures and the cultural practices of the region you want to move to, and take cultural adaptation training.