First determine the reed is moisture enough that the lips of reed disconnected for aprox a millimeter. If it isn’t moist enough just sit there a while blowing lightly into it, the moisture from your breath will wet the inside.

Then:
Do not use your you teeth. Grip it with your lips in the middle of the reed. It should rest on your bottom lip and be pushing on your lower teeth and jaw.(try taking more or less of it into your mouth, also pressing down more or less hard).

To make your first noise try covering all of the holes, none of the holes, or take the reed out of the instrument altogether and try playing like that.

Try the following; keeping your head level, put your hand out and below your mouth, blow into it. Keep the air stream pretty narrow. Then do the same thing and make your mouth move like you were saying “Tuu… Tuu… Tuu” but don’t actually do that, because then you won’t be blowing the air. (then try doing this into just the reed or the instrument with no holes covered).

Lastly:

the new reed is in need of “breaking in” it will get softer and easier to play as you play the instrument more. (of course you will also get better a playing as you play more).

Yeah, PC, don’t get confuse if it doesn’t sound like a duduk right off the bat, it will with practice.