Reporting Income Tax in Canada

A couple months ago, I received a T5 slip from TD Bank. They told me that I need to report income tax because I get interest from the bank. At that time, I had no idea what income tax is, so I totally forgot the letter. My grandparents remind me of reporting income tax this Monday; however, I still didn’t know what income tax is. Pui and I went YUELI office to ask about my case. They suggested me to go to York International in Vanier College. We went there, but they told me that it would be better to go to York Student Service. Unfortunately, when I described my case to a staff in Student Service, he told me that they even didn’t know how to deal with. He told me it would be better to find a lawyer or this kind of service.
I think the process of reporting income tax is complicated, and we are international students. We came here for a short time, and we don’t know the law and rules in Canada. However, only few people and communities can help us. We pay everything as every citizen, and we also pay more than them. However, we cannot get enough help. I think it’s unfair for us.