Starter not rising 😭

Hi everyone!!

I have created a sourdough starter that is now on Day 12. It is consistently bubbling after each 12 hour feed, however am yet to see it rise!

I have noticed that it has started to smell a little bit like vinegar also

Any tips are much appreciated!

Welcome to the Breadtopia forum! A vinegar smell is a good sign. You might find this thread helpful for tips on what to do next.