Scripture suggestions:

Celebrate - 11 verses in ESV
Leviticus 23:39
Leviticus 23:41
2 Samuel 6:21
Nehemiah - 12:27  "bring them to Jerusalem to celebrate the dedication with gladness,"
Jeremiah - 30:19
Luke  15:23 

Joy - 171 references with ESV
1 Samuel 18:6
1 Chronicles 16:27
Palm 4:7
Psalm 20:5  "May we shout for joy over you salvation"
Isaiah 12:6  "With joy you will draw water from the wells of  salvation."
Isaiah 16:10
Luke 1:44
​Luke 2:10
​
Peace - 340 references with ESV
Genesis 28:21
Judges 6:23
Psalm 4:8  "In peace I will both lie down and sleep."
Psalm 122:7
Isaiah 9:6
Isaiah 26:3
Mark 4:39
​John 14:27  "Peace I leave with you; my peace I give you."

Trusting
Psalm 4:5  "Offer right sacrifices, and put your trust in the Lord"  (RSV)                                                               
Psalm 9:10                                                                                                                                                                           
Psalm 31:14                                                                                                                                                                             
Isaiah 12:2                                                                         
​Isaiah  30:15  "In quietness and in trust shall be your strength."

Fear Not
Genesis 15: 1
Exodus 14:13
Psalm 118: 6  "The Lord is on my side; I will not fear."  (ESV)
Isaiah 35:4  "Be strong; fear not!"  (ESV)
​Matthew 1:20
2 Timothy 1:7
Hebrews 13:6
​
Afraid -- Not be afraid
Genesis 43:23
Genesis 46:3
Psalm 27:1
Psalm 56:3  "When I am afraid I put my trust in you
Isaiah 41:10  "Frear not, for I am with you"
Isaiah 41:13  "Fear not, I am the one who  helps you."
Isaiah 44:8

Strength
Genesis 4:12
Exodus 15:2  -- the Lord is my strength and song
Judges 6:14, 8:21, 16:6
I Samuel 28:20
Job 6:12, 21:23
​Psalm 28:7  -  the Lord is my strength and my shield
            46:1   -  God is our refuge and strength
            84:7  -  They go from strength to strength
​Isaiah 40:29  -- He gives strength to the weary
Mark 12:30  -- Mind, and with all your strength
I Peter 4:11  --  by the strength which God supplies
Revelation 1:16 -- sun shining in its strength


Strengthen -- fortify
Deuteronomy 3:28 -- But commission Joshua, and encourage and strengthen him
Judges 16:28 -- "Sovereign Lord, remember me. Please, God, strengthen me just once more,"
Isaiah 35:3 -- Strengthen the feeble hands, steady the knees that give way.
​Luke 22:32   (Jesus speaking) "And when you have turned back, strengthen your brothers."
Colossians 1:11  -- being strengthened with all power according to his glorious might
2 Thessalonians 2:17 -- encourage your hearts and strengthen you in every good deed and word.