Hello, first year that I fill up my taxes. Should I just wait until the end or do I have something else to, or to send ?

As you are non-resident, you will need to mail or fax your return. This CRA page has info on where you can send your return: https://www.canada.ca/en/revenue-agency/corporate/contact-information/where-mail-your-paper-t1-return.html#nonres

Thank you so much for your reply !