My first statement

In our institute are often held scientific conferences. Students can present and discuss their work. In the first year of the institute, I was afraid to speak, so I just went as a spectator. I was very inspired by a conference on programming. There I learned a lot of interesting things. But most of all I liked the scientific work about medical software.

In the second year I took part in a conference on mathematical analysis. My teacher told me to take the theme of 'the use of integrals in the economy'. I took more than a month to prepare for it: looking for information on the topic of economics and mathematical analysis, studied it, decided on two logarithmic problems, and made a presentation with animation*. The teacher helped a lot. I went to her class-room and we wrote my speech. I learnt something and had fun.

When the day of the conference came, I was very nervous, because it was my first time. The speakers and audience were in a large auditorium. When it was my turn, I opened my presentation and began to speak and the excitement was gone. I spoke on* how to use definite integrals to find consumer surplus(es?). The audience listened to me attentively. After my presentation, I answered all questions. I was proud of myself.

*or, made a 'powerpoint like presentation', maybe?!

**'recited' is more for when you say a poem or a drama. 'spoke on', or, 'spoke about' is better for academia.

Very well written!