Repeating pattern problem

I feel like I have tried everything "index offset indirect" and nothing seems to work.

Here is my issue

I have 3 sheets
First sheet named "group function sheet"
Second sheet "Group worksheet"
Third sheet "Decision task sheet"

I need the information put in the group work sheet to show in the decision work sheet but the cells are 6 off
example: In the decision worksheet cell T7 needs to equal the cell contents on Group worksheet cell F19
and then in the decision worksheet cell T8 needs to equal the content in Group worksheet F25

See its going to be 6 cells off everytime I need to do this in Decision worksheet to cell T5000

I have tried the indirect formula and it works in the first cell but when I copy it and drag it down the row it just shows the same thing as whats in the cell I copied it from


Please help