I read this book 3 years ago and i desperatly want to find it again

it is about a teenage girl named tess (i think that's her name) and she has lung cancer but she has a list of stuff she wants to do before she dies written ubove her bed so she mmets this boy and he and her friends help her to do the stuff on her list

i remember one of them was drugs so he got her magic mushrooms that they put in tea and when she was high she climbed a massive tree.

hopefully im making sense

well she dies in the end and there are some sexual scenes but not too graphic but it was still sort of inapropriot seeing as 3 years ago i was like 13

but i would REALLY apreciate it if anyone who has read it and recognised it to reply with the title becuse it is really frustrating me.

THANKS X

Could it be Before I Die by Jenny Downham? Here is the Amazon link:

http://www.amazon.com/Before-I-Die-Jenny-Downham/dp/0385751834/ref=cm_cr_pr_pb_t...

and here is the description:

"Tessa has just months to live. Fighting back against hospital visits, endless tests, and drugs with excruciating side effects, Tessa compiles a list. It’s her To Do Before I Die list. And number one is Sex. Released from the constraints
of “normal” life, Tessa tastes new experiences to make her feel alive while her failing body struggles to keep up.

Tessa’s feelings, her relationships with her father and brother, her estranged mother, her best friend, and her new boyfriend, are all painfully crystallized in the precious weeks before Tessa’s time finally runs out."

You'd probably get more responses if you had a better title for the topic - read the guidelines on the group page and put more info in the title to trigger people to check. Of course, amysisson may already have found your book...

OMG
THATS IT!!
yes!!

That's so satisfying to finally find that book after wondering about it for so long :D