Don't worry about it,
Start by removing the paper from one side of the canopy piece.
View attachment 150170
Then cut a slight bevel on the two edges that form a point. (excuse the slightly spray painted hands)
View attachment 150171
Next flip it over and tape the flaps together so that there is no gap between the two flaps.
View attachment 150172
Then flip it back over and put a seam of glue where the tabs meet.
View attachment 150174
Repeat the last three steps on all of the little flaps or tabs so that starts looking like the canopy on my plane.
Next glue it to your Canopy Base
View attachment 150175
After your glue dries you can remove the tape.
View attachment 150176
Finally you can trim the canopy flush with the base plate.
View attachment 150178
Let me know if this makes sense and if you need anything else.