To be ignored or devalued is a horrible feeling. To have your contributions discounted, your very person treated as nothing is painful. Unfortunately, our world grades people based on things like skin color, looks, education, where one lives, money, popularity and a host of other superficial markers. Some are gullible enough to buy into these standards and spend their lives trying desperately to measure up to some earthly value system and still never achieve full acceptance in the eyes of others.
But when no one else notices, mark it down, God notices. When no else remembers, God records. When no one else sees you or appreciates you, your name is engraved on God's hands. God knows your name, God knows your coming and your going; God knows the number of hairs on your head; God knows the number of your days, they are all recorded by God. The psalmist tells us that God even keeps our tears in a bottle (Psalm 56:8). God will reward us for acts that are done in His name. So be encouraged. There will come a day when rewards will come your way, not necessarily in this life but certainly in the life to come.
Therefore, my dear sisters and brothers, stand firm. Let nothing move you. Always give yourselves fully to the work of the Lord, because you know that your labor in the Lord is not in vain! I Corinthians 15:58