You need to have a customer before you can create a project. If you do not have a customer, make sure that you have read the article below: How to create a customer.
Go to Projects → Project list → Add project.
Select a Customer, and then enter a Project name. Note red asterisks on the left-hand side which indicate obligatory fields.
Select a Source language and one or more Target languages. Also, upload your source file (that is to be translated) in the For translation section.
Select a Workflow, and then click the Create button.
Your project is now added to the projects list.