Freaked Out!

Ok So I just realized that I totally have such a large email list that my hotmail will not let me send that many in one day. I want everyone to have a fair chance for items July 31st so I have tried not successfully to import my contacts list to Thunderbird. I am having to go in and put everybodies emails in by hand and then I don't know if any are missing. Soooooo I am going to make a new yahoo account and export the list to there and hopefully I will be able to send it all from there or at least half there and half from hotmail.......Any other ideas please let me know...