am I the only one who didn't feel sorry for her?

No, you will find that a lot of people were not sympathetic. She did in fact create a good number of the problems, and even the rape was partially her fault as she thought it was a good idea to party with a man she knew was a rapist and hardly even put up a struggle.

If I had to make a tape for each person who wronged me before committing suicide, I'd give up on the idea after the 100th tape. Like seriously, I have zero sympathy for people like that. They don't stop their problems and pain when they off themselves. They just spread it to everyone else like a fucking disease. The most selfish act there is.

I know this is a thread from a year ago but I just watched season one.

I started with sympathy but it didn't last the whole season. I actually felt if she wanted sympathy from me one of those tapes should have been of her mother, who seemed to be very self involved. Maybe she only appeared that way because of Hannah's suicide but she came across in flashbacks as self serving as well. Like the mother, Hannah put the blame on everyone but rarely herself.
Her so called boyfriend took a pic and showed his friends which made its way around school, I had sympathy for that. It was kind of hard to keep up the sympathy when she continued to place herself in vulnerable positions with that group of people. Then when she attempted to put some blame on Clay for not returning after she told him to go at the party and never explained in the days after, it was really hard to give the character sympathy. She put Clay through hell with those tapes but he was there for her in life and she pushed him away - her own actions.
I did not quite understand what she wanted the counselor at the school to do, she was unwilling to actually say what happened, who did it, etc but she beat around the bush. The counselor could have pushed more but she did to him like Clay and walked away. She expected so much from those she pushed away and then laid guilt trips on them when they walked away. How could the counselor help her if she was unwilling to offer information to allow him to help her, how could Clay? A school full of people and she elected to continue to attempt friendships with the same group of people who continued to hurt her?