Yesterday I tried making a Bitcoin transaction and I accidentally added the same address it's coming out of. Mistakenly I may have tap the copy to clipboard without realizing. Luckily for me I did not click the send button before I realized my self.
Why you will use an address coming from the clipboard suggestion? I’m always sending funds on same wallet due to my commitment to donation but I’m always copying the address from the source no matter how repetitive the process since I want to make sure that address I copy is right despite I’m always sending on it regularly.
Your problem is not about sending Bitcoin on same address but rather sending Bitcoin on a previous address that you send some Bitcoin.