Heaven does not rejoice over those who make “decisions.” It reserves its rejoicing for sinners who repent.
“Have you taught for a long time in your Sunday school class and have you had only one girl saved? Do not be satisfied with that one, but, at the same time, do not forget to thank the Lord for that one. If you are not grateful to God for letting you win one soul for Him, you are not likely to be allowed to win another.” Charles Spurgeon
Likewise, I say to you, there is joy in the presence of the angels of God over one sinner who repents. (Luke 15:10)