If you enjoy storytelling with data, pattern-finding, and interpreting business problems, Data Science may be the natural next step — especially since you were a BI Analyst earlier.
Yes, you’re rusty now, but many others have restarted after breaks and succeeded.

Start small:

• Relearn Python, SQL, and pandas

• Do mini projects (e.g., Kaggle, real-world datasets)

• Gradually move toward ML basics, not deep theory

• Focus on communication of insights — highly valued and monetizable