my school gave me an email and all the professors want to email me on there, and my isp gave me an email and they want to tell me about my bill on that one, but I can't login to either of them!! they both gave me a username and password to use and told me exactly how to login, yet it still doesn't work. This is what happens when people who don't understand technology try to push technology on everybody else
What error message do you get? Does it specify incorrect Username, Password or both? And does it have a 'Forgot Username / Password' feature?
If there's the option, do "forgot password". It will email your secondary account your password. Wait, you said you couldn't get on any of them? Nvm your screwed. In reality though it's probably a simple mistake, or your email client is down.