How do i make my wordpress blog faster?

I was wondering how do i make my wordpress blog faster! I tried all of these plugins such as wp-super cache, gzip output, and more! None really made it any faster at all! I even tried the built in cache feature, but i had no luck! Can someone please help me!

my blog- http://kiyok3wstiyo.com
(btw-wp-super cache and gzip output is running right now. I also only have 15 plugins installed.)

WordPress plugins to have unique logins to specific saved data form?

I’m in the search of plugins that are capable to allow a registered user of my wordpress website to access saved data they had entered in a previous session. For example, there will be a questionnaire that will require several hours of answering. Unfortunately most users will need to login when time is applicable to answer all the questions. I would like it to work as when I go to log in to the website, all the questions I answered before will still be there to allow me to continue on with the form. It has to be secure if possible because sensitive information will be submitted. Any help on this would be sincerely appreciated. Thanks!