CFA foundations worth it - internal audit?

Hi guys, fairly new to all this. I have just finished my final uni exam (non-finance subject) and I have an offer for graduate internal audit at a medical insurance company (3 year contract and studying towards CIA) I would love to break into internal audit at a bank/invevstment firm in the future. Should i take the time this summer to complete CFA foundations? (I am already going to do some excel, power BI and SQL short courses on linkedin)