Seeking to learn Data analysis can someone guide me the right path to be followed or any course.

Started learning data analytics by self via free resources. Can't afford the course fees online.

• Sql done by self
• excel done by self

Stuck at statistics part, need help for right resources to refer from

Please guide

I have 15 plus years experience in different process in backend Testing, pensions and voice calls, also hv done diploma in HR through correspondence however couldn't upskill myself due to various responsibility at home and sickness in my...