I've submitted my new site a week ago on google search console, but now I see that all of my URLs are excluded and the status is
Crawled - Currently not indexed. Why this is happening and how to fix this?
The status Crawled —currently not indexed is indicating that the content is eligible to appear in Google's index, but Google is electing not to include it (that differs from being excluded).
You submitted a new site a week ago, you must be patient as Google needs to analyze your site before indexing it. Meanwhile, take a look at Google Sandbox concept and review some actions in order to speed up the process:
Poor internal link structure: make sure your relevant pages have enough links. If you find important pages that you really want to rank with, add more internal links to them from pages higher in your website's architecture (especially from the homepage).
Poor content quality: double-check whether your content is likely to satisfy user-intent, and adds more value than competing content on other sites.
Duplication: check if your relevant pages are (near) duplicates of other pages, and should actually be canonicalized.
Domain Authority too low: if the site is new maybe your domain authority is too low. You're publishing more content than Google is willing to index for your site. Gaining more backlinks will increase your domain authority.