If your account has been approved, you will have available connects and you will have the ability to submit proposals to jobs without any errors. If your profile is still under review, the image below will be on top of your upwork page or if you are not accepted in the platform, a different notification will appear. I hope this helps.
I would also like to add that profile reviews may take 24-48 hours to complete. Once the review process is complete, you will be notified via email and on your Upwork account. Let us know if you have other questions. Thank you!
I'm not sure I quite underastand the question. I hope you don't have multiple accounts.
For that one and only account that you are allowed to have, if you can bid, it probably means that your profile is approved and you can bid for jobs.
Yes, your profile was accepted, feel free to start submitting proposals for jobs that you find to suit your skills and experience. Please, check out these threads Getting Started on Upwork and Hiring Headquarters. There you’ll find some excellent articles and learn more about Upwork.