Take up thy bow and get thee hence to the pro shop.

Let them get the bow tuned up for you. They can also help you correct any shooting form mistakes you are likely making. You do not want to keep struggling on by yourself, trying to get your confidence up, while developing bad habits that may be next to impossible to break later on.

Besides, when the bow is tuned you just might find out you're shooting a lot better than you think you are. An untuned bow will often not shoot two arrows to the same point of impact.