At the risk of the moderators pulling my post for advertising (I'm not!), if you want some first steps in doing EFT, take a look at my old website (lots of out of date information! eeek!) for free automated interactive EFT treatments...
Little Me - EFT and Reiki | Free Online EFT
(there's no tie ins, no selling of your contact details and I won't even email you back unless you ask me to!

)
It was designed for an old version of Internet explorer so may not work ideally, but should still work enough to get an idea. I've just tested in firefox and it nearly works, but goes slightly out of alignment (moreso than the latest internet explorer, but it was never designed for tabbed web browsers).
You can download the basic "recipe" (instructions) free from the EFT website:
Official EFT Training - Learn EFT from the Founder Gary Craig
But you'll have to be quick as there's a chance the website won't be there much longer as
Gary Craig is retiring and there is uncertainty as to whether the website will be kept going. I think that's planned for March this year.
It's not necessary to purchase the DVD's to learn EFT unless you wanted to qualify as a practitioner, although saying that the content on the DVD's is very good and valuable for anybody wanting to get a good insight and understanding of EFT beyond what is in the free manual. (I have the CD version of the videos, from before they went onto DVD and I've found them very valuable, but it was an investment for my learning EFT as a practitioner)
I'm more than happy to give advice regarding EFT here on the forum if you're happy to work on things out in the open, or you can contact me offline and I'll happily provide free guidance via email.
For some other guidance you can read lots of information from the EFT website on panic attacks...
Search Results: panic attacks
The main thing with panic attacks is that, like other conditions such as depression, it is not just a single aspect that can be worked on; it's necessary to look at the underlying aspects that are the cause for the panic attacks in your own situation and work on each of those things. Typically it comes down to fears of some sort, and the longer you have suffered from panic attacks the more fear of having a panic attack you get, so there is a sense of having a fear of having fear; which sounds a little odd, but is certainly an aspect that should be looked at with the treatment.
EFT is certainly a good route to go down for treating your condition as is practicing meditation.
You've made a good choice thinking of EFT and also for seeking help via Project Meditation as there's loads of great support and skills here.
Hugs
Giles