How are you doing?
I am gonna ask a question.
I want to get the first project as soon as possible.
I am seeing there are many projects that I can complete.
How many proposals can I submit per day?
There is no limit on how many proposals you can submit per day. When you apply for jobs, make sure your proposal is well written and that you're absolutely qualified and certain of your ability to complete the job you're applying for.
Could you please clarify if you are referring to interested in tips on how to get started? If so I would like to recommend to check out this Community board as it has many great articles to help you boost your career on Upwork and this thread to help you get started. Feel free to follow up if you have further questions.