Well i did ext 2 and wrote a critical response and i think i spent about 90% of time doing research. What everyone has said so far is all valid. You really need to do something you enjoy doing and research because, honestly, my critical response was like my primary focus, i spent most of my time after school and during school working on it. It took away my spare and free time, i became so obssessed with it that i began to have no life... and in the end i changed my whole focus, but because of the extensive research that i had done i finished it just as well. I guess i 'kinda' got attached which is like the number 1 no-no rule in ext 2.
When i started my major work i never thought i would feel so satified and fulfilled at the end of it... my teachers saw the changes in me and my attitude towards Shakespeare change... (my critical response revolved around shakespeare) so yeh.. don't try and impress ur teachers or friends or family.. do something that u think u will feel proud of at the end of it!