Hi there Gammy!
It sounds like you need to verify your Apple ID email address before you can sign into iMessage and, less importantly, FaceTime. You should have gotten an email when you set up the Apple ID with a link and information about verifying the account to use as an Apple ID. I would recommend taking a look at the following article to help you find the email, or re send it if needed so you can then sign into your account on your phone:
If you didn‘t receive your verification or reset email
We'll send the email from "Apple," so you can quickly search for it. If it isn't in your inbox, check your folders. If a spam filter or email rule moved the email, it might be in the Spam, Junk, Trash, Deleted Items, or Archive folder.
If you're looking for a verification email, you can sign in to your Apple ID account page and review all the email addresses you have on file, including the one that you're trying to verify. If the email address is incorrect, you can update it and send another verification email.
To resend the verification email, sign in to your Apple ID account page. Click Resend next to the email address that you want to verify, and we'll send an email to that address.
If you're not getting any email, you might need to contact your email service provider for help. You can also use these steps to get help receiving email at OS X Mail or an iCloud email address.
Go to System Status and see if Apple ID is available. If you still can't find the reset email or verification email, contact Apple Support.
Thank you for using Apple Support Communities.