Text join ignoring blanks but limited to a maximum of five entries

[JFawcett]

Hello,
(edited for more clarity)
I need to a formula to join text in cells together ignoring blanks but stop at a maximum of 5 entries
I've tried textjoin, this works fine in joining all the cells but I only need a maximum of 5 entries.

For example using textjoin cell AP25 reads 6,8,9,13,15,18,19, but I only require the first 5 so i need it to read 6,8,9,13,15

Text to columns would work but it would be great if I could do this via a formula.
I need Column AQ to look as it is but by using a formula (I've typed the entries in)
Hope this makes sense.

Thanks for your help!!