Locked Out of Microsoft Email - Need to Regain Account Access

I am unable to access my important Microsoft email account. This email is crucial for me to effectively manage all my other accounts and stay on top of my online activities. Even though I've entered my login credentials correctly, I'm experiencing difficulty accessing my account or performing any related functions. I'm facing a major inconvenience right now and I really need help to regain access to my email and its connected accounts as soon as possible.