Can anyone help me on my 3pt shooting?

I am a point guard and im very solid at my mid range game and definatly my inside game and passing....my ball handling skills are solid as i can use both hand and layup with both but what are some tips on improving the three?? i can shoot the three but i want tp be solid on the three.... any help on 3pt shooting ( if it helps im 13 and 4ft10 and havent hit growth spurt yet so i will grow eventually)