Ya at least she has to put your name in the poster presentation. But most of the researchers not willing to put others name in their research. Don't' think too much and don't feel sad. By helping, you got some knowledge.

First know about your research topic and try to understand the literature. Don't disappoint anywhere, because to understand our research takes at least 2 years. All the best.

Dear ppatch, it is quite common. Simple advice is keep going on, definitely you get better and your supervisor will admire you. Don't think about quitting and all those non-sense. More pain more gain. All the best.