[Plugin: podPress] Help with category podcasting

i have submitted a feed for a category but its showing all the files,

I don’t know which feed you have submitted. But you are correct e.g. https://www.flippish.com/category/video/feed/ seems to include all posts.
You can modify the options for the category feeds via Posts > Categories > Edit Category. The section podPress Category Casting / Further Feed Settings you can find e.g. an option which allows you to restrict the posts for a certain category feed via the file type of the podPress attachment.

Furthermore you have activated the itunes:new-feed-url function on the podPress Feed/iTunes Settings page and the new feed URL is set to https://www.flippish.com/?feed=podcast which is the default podcast feed podPress adds to each blog. But it is not a category feed (at least not by default).
This means that you signal the iTunes Server that it should use the new URL to gather the data about your podcast. The iTunes Store page will most likely show this feed now.
This setting is for all default feeds of the blog (feeds which WP offers by itself) which includes also the category feeds. The podPress Feeds are additional feeds and have an own similar option.
To turn this back and make the category feed the feed in the iTunes Store again, you need to turn the itunes:new-feed-url on the Feed/iTunes Settings page off. Further activate the function in the podPress Feed “podcast” and use as the new feed URL the URL of the category feed. iTunes Server will notice the modification in a couple of days and switch automatically to the new feed URL.

a further note: https://www.flippish.com/?feed=podcast leads to a Feedburner version of the feed. under certain circumstances Feedburner stores the feed in a cache memory. This could mean that modifications like switching the itunes:new-feed-url option on might not be visible immediately or maybe only after you clear the cache memory of Feedbruner.

Thanks What i did is i sent https://www.flippish.com/?feed=podcast on itunes for podcasting, then i sent another one https://www.flippish.com/category/happy-endings/?feed=podcast for the category, but that one just have the same contents as the first one which shows all posts. I have my podPress Category Casting activated for that category too, So i just need to turn off the iTunes:New-Feed-Url?

Hello sir if i have around 30 categories how can i put them in just 1 podcast but have some separated categories?

You may use a podPress Feed instead of a customized category feed.
Open the Feed/iTunes settings page and go to the podPress Feeds section.
You will find there the possibility to configure 5 additional RSS or ATOM feeds. The first one is the feed with the slug name “podcast”. You may use this feed. Make your settings like on the category feed page.
But the advantage of this feed is that you can use the category filter to add only posts with podPress attachment of certain (these 20) categories.

Regards,
Tim

Can you check my settings they seem to be getting the same feed
This is for my category :
Category Podcast

It is supposed to be on this podcast : Link

This one is the main podcast
Main Podcast Settings

supposed to be on this one : Link

Thanks Please.