Sorry to learn of your difficulties. Resetting your password shouldn't have any impact on your projects, that is unusual. Some things I would check or test to start with.
Do you have more than one email address? If you accidentially logged in with a different one than was used to create the projects originally that could be a cause. Log in with others to confirm.
Do you use the same email for school and home or work and home? If you do, you generally receive a prompt to select either personal or school/company at login. Selecting other than what was used originally to create the projects could cause the issue.
Test in a few different browsers - Chrome, Edge, Safari, Firefox, etc.