When should you conduct a go-around?

A reminder for students: a go-around is not a sign of failure — it's good airmanship. If at any point during the approach you are not stabilised, or the runway environment is not in sight by the decision point, you should go around. The same applies if there is unexpected traffic on the runway, wind shear, or if anything just doesn't feel right.

My instructor always says "a good go-around is a sign of a good pilot". I think new students sometimes feel embarrassed, but it's genuinely the safer option every time you're uncertain.

Absolutely. A common scenario is when the aircraft is too high or too fast on final. Trying to salvage an unstabilised approach is one of the leading causes of runway excursions. Commit to the go-around early, apply full power, adopt the go-around attitude, and follow the published missed approach procedure if applicable.