WHY THE WORRY?

The One continuously calling you is faithful (trustworthy; loyal; full of faith and trust), Who will also perform ( do , make, form, construct, create, produce
1Thessalonians 5:24.(JMNT Bible 2014)

*The One Who calls you is faithful, Who also will do what He has said .
See also Hebrews 10:23. we should, without wavering, hold fast the confession of the hope, for the One Who promised is faithful,
1 Thessalonians 5:24 (ONMB). *

Be encouraged brothers and sisters, if He said it, He will do it or perform it . I said that He, not you, will do it! Not by your power or might but by His Spirit. Remember also Jeremiah 1:12. Then the LORD * said to me, You have seen well, for I AM hastening My word to perform it.

I know that it seems like it is taking forever, but trust Him and persevere and you will see the performance (Habakkuk 2:3. For the vision is yet for an appointed time, but at the end it will speak and not lie. Though it tarries, wait for it , because it will surely come , it will not tarry.

Another version says:

For the revelation awaits an appointed time ; it speaks of the end and will not prove false. Though it linger, wait for it; it will certainly come and will not delay.).
Appointed here means the time is set!
Note that it isn't when it appears that it is/was done, rather, it was done as soon as you asked Him. Your confidence in Him, brought/brings it into the here and now.

Selah!