Answered by Sayyidi Habib Umar bin Hafiz (may Allah protect him and benefit us by him).
I have been involved in da`wah for some years and I feel drained and I lack the support of those around me. What advice do you have for me?
You must remember for Whose sake you are working. You must be true to Him and remain serving Him until you meet Him. Even If no one on the face of the earth supported you and everyone was against you, it would still be your obligation to remain calling people to Allah until you meet Him. At one point Sayyiduna Ibrahim was the only believer on the earth. Allah said about him: Truly Ibrahim was an entire nation.