Stop saying ‘but yet’, people. Just stop it.
‘But’ and ‘yet’ are synonyms. In this context, they mean exactly the same thing. Using them together is utterly redundant. If you’re doing it to sound sincere or more knowledgeable about something, it has the opposite effect. Trust me.
“I want to go to the ball,” said Cinderella, “yet I have nothing to wear.”
“I can help you,” said the fairy godmother. “But you must be home by midnight.”
The first example does not need the word ‘but’. The second does not need the word ‘yet’. See? Easy.
Now stop pairing them together.
That is all.