How realistic is achieving a 20% annual return as an amateur investor? On this week’s personal finance edition of podcast Merryn Talks Money, it doesn’t take long for hosts Merryn Somerset Webb and John Stepek to come to the conclusion that consistently outperforming the likes of Berkshire Hathway in your free time is far from likely. 

But the bigger question is how to set yourself a realistic but rewarding goal in the first place. On this episode, Webb and Stepek take personal investors back to the drawing board to discuss setting targets, picking a portfolio and—most importantly—avoiding panic.