My sourdough starter isn’t smelling yeasty despite feeding it regularly

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Can anyone help me trouble shoot my sourdough starter?
I started it on Sunday and fed each day 24 hours later.
I started feeding twice a day as it was getting a bit vinegary

It still smells a bit like vinegar now on day 4

Do I need to be more patient? Anything I can do to help it

Are you removing some before you feed it? I'd put some in a fresh bowl and continue with that.

I remove 200g and replace with a 200g mix of 100g flour and 100g water

Try a few days with 50g each and remove 100g until it gets going.