God does not forget us. Some days, it can certainly feel like it. Going through difficulties and hard times can sometimes result in feeling that God has forgotten us, but see what it says in Hebrews 6.
For God is not unjust so as to forget your work and the love which you have shown toward His name, in having ministered and in still ministering to the saints.
Hebrews 6:10 NASB
It would be unjust if God forgot us and what we have done for Him. God is not unjust and He will continue to reward us for the work that we have done out of love for Him. God sees us and God knows what we are going through. Will we continue to trust Him, knowing that He has not forgotten us?