Please I need help finding my T1 general, when I sign in I don't see my previous years ( I did 2017 and 2018 returns with turbotax
You have a number of options to view your previous year's tax return. Here's a great FAQ that lists all the options in detail:
https://turbotax.community.intuit.ca/community/navigating-turbotax/help/how-do-i-view-a-previous-year-s-tax-return/00/873423