I have no idea on how to fix my rss feed

look at the error at the top of your feed:

https://www.599usdollars.com/?feed=rss2
—

what you pasted above is a broke url because that url assumes you are using pretty permalinks — you are not, you are using default permalinks.

What I linked to will always be there.

—

now back to the error —

Do you see this?

Cannot modify header information – headers already sent by (output started at /home/.teena/viewtiful/599usdollars.com/wp-blog-header.php:3) in /home/.teena/viewtiful/599usdollars.com/wp-includes/feed-rss2.php

open wp-blog-header.php and doublecheck that you have NO spaces or lines breaks before the opening <?php and none after the closing ?>

thanks a bunch!