DO loop for Range for plotting portion of data

I have thousands of lines of data and I need to select portion of this data and plot it. Data is being chosen based on values passed onto some cells in the sheet. See code below. The challenge is that I dont know how to use DO/While loop to do it for different cell values...

In the code below B1766 cell takes values from 1 through 5 and C1766 takes values from 1 through 11 and as you can see D1766 takes values from 1 through 7. Can anyone please help figure this out? :)

If Worksheets("Sheet7").Range("B1766").Value = 1 Then
If Worksheets("Sheet7").Range("C1766").Value = 1 Then
If Worksheets("Sheet7").Range("D1766").Value = 1 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D334:Q337")
End If

If Worksheets("Sheet7").Range("D1766").Value = 2 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D338:Q341")
End If

If Worksheets("Sheet7").Range("D1766").Value = 3 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D342:Q345")
End If

If Worksheets("Sheet7").Range("D1766").Value = 4 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D346:Q349")
End If

If Worksheets("Sheet7").Range("D1766").Value = 5 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D350:Q353")
End If

If Worksheets("Sheet7").Range("D1766").Value = 6 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D354:Q355")
End If

If Worksheets("Sheet7").Range("D1766").Value = 7 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D356:Q359")
End If
End If

If Worksheets("Sheet7").Range("C1766").Value = 2 Then
If Worksheets("Sheet7").Range("D1766").Value = 1 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D360:Q363")
End If

If Worksheets("Sheet7").Range("D1766").Value = 2 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D364:Q367")
End If

If Worksheets("Sheet7").Range("D1766").Value = 3 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D368:Q371")
End If

If Worksheets("Sheet7").Range("D1766").Value = 4 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D372:Q375")
End If

If Worksheets("Sheet7").Range("D1766").Value = 5 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D376:Q379")
End If

If Worksheets("Sheet7").Range("D1766").Value = 6 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D380:Q381")
End If

If Worksheets("Sheet7").Range("D1766").Value = 7 Then
Worksheets("Sheet5").ChartObjects("Chart 6").Activate
ActiveChart.SetSourceData Source:=Sheets("Sheet7").Range("D382:Q385")
End If

End If