I did exactly extrude the face but mine's not having gap between the shape...
Hi Yujin yyuplusjin ,
To me, it looks like you Inset, Inset again and then Extruded backwards, or something like that, while you should:
Inset, Inset again and then Move the Face backwards and then Extrude it forwards again.
Hi, I figured the problem but merging edge in 6:58, mine keep showing two edges even though I merges them.