Are my Bitcoins in danger?

I have been waiting 15 hours for a transaction to be confirmed. I tried to relay it through but it doesn’t seemed to have done anything. Since then I have been getting this message on the blockchain

“Warning! this transaction is a double spend. You should be extremely careful when trusting any transactions to/from this sender”

I have no idea what is going on with my coins. Here’s the blockchain ID if you want to have a look for yourself

Any help will be greatly appreciated

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