You may want to try a longer, heavier dart, about as long as you are tall, or a bit shorter, and about the diameter of your little finger.  It isn't rocket science, just whatever works!  But throwing is fun and getting good is more fun!  Start close, maybe 7 - 10 yards or so!  I was able to afford more darts as I thought cast, chase, cast, chase was a bit slow!  Hopefully, there will be more time for the throwing and shooting as we get more settled in!  You may need to straighten your darts once n a while, too.
Hawkdancer