Answered by Sayyidi al-Ḥabīb `Umar bin Hafīẓ (may Allāh preserve him and benefit us by him).
How we do balance between concern for affairs of the da`wah and concern for our own spiritual progress?
Make all of your da`wah efforts a vehicle to purifying the soul and illuminating it. You should also be glad when you find people that are serving the da`wah well because it takes some of the weight off you. Your concern for the da`wah should not cause you to neglect reciting a portion of the Qur’ān daily and spending some time in remembrance. Likewise you should pray in congregation, perform the Sunnah prayers before and after the obligatory prayers and pray the Witr and Ḍuḥā prayers, and give a portion of money, even if only a little, daily in charity. You should also read some of the books of the scholars of the spiritual way.