The OPG is a 2D representation of a 3D object. Even though the nerve is seen to be impinging on the tooth, the tooth is clinically visible and can be extracted surgically without much fuss.
You can't delay infection because in your case the source of infection is decay caused by food lodgement - an inevitable happening given the angulation of your tooth.
Next Steps
Kinldy have your wisdom tooth extracted by an Oral Maxillofacial Surgeon (preferably a confident one who doesn't shun away from extraction just because of the proximity to nerve as it is a common occuy).
Health Tips
Follow the post op care as mentioned by the surgeon diligently after extraction and you'll be fine in no time!