Unable to push or pull

I committed some changes in my Xcode project and tried to push them, but I am prompted with: "The local repository is out of date."

Then I tried to pull as they said, but then I am prompted with: "The working copy has conflicting, uncommitted changes."

I really need to commit these changes, and I am scared of losing them if I do any wrong step. What should I do? Thanks

Unable to push or pull
 
 
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