I am adding a second new list. These are only people who I have an ongoing email relationship with. I do not see how to save the contacts. I've lost list 2 times. Thankfully I didn't enter my full list.
We're sorry for any troubles with adding contacts to your account, and want to thank you for reaching out so we can share this very helpful resource with you: Add Contacts to Your Account [Video]. I do see that your account is currently a Trial which gives you the ability to create campaigns and send them to up to 100 unique contacts. Just let us know if you need any further assistance!