Well, if planted at the right time, and given as much direct sunlight as possible, the plants dont normally stretch. The reason your's stretched is probably cos it's not getting enough direct sunlight.

Even if you dont get anything from it, it hasnt been a waste. You know you can grow a plant now, which means you can keep growing, and improve with ever grow untill you can get silly amounts of high quality bud from every plant [Every female plant lol]