The clubs are numbered to differentiate them from the other clubs within the same set. The number on the club is just a number. That number is not attached to a fixed or required distance. The distance you strike the ball depends largely on the length and loft of the club, on your ability to use it and on the way you are using it for that shot. The distance will also be affected by altitude so that at higher altitude, it's possible to send the ball further. Weather will also play a small role in distance. If you include roll as well as carry, ground conditions will play a fair amount for overall distance.

You wrote that you are 17 years old. As you get older and perhaps stronger and gain further ability to use golf clubs, you may also gain the ability to send the ball further using the same clubs you use now. Through study and practice, you will also improve your ability to strike the ball precisely with the club. The greater the precision you strike the ball with, the more speed you can transfer to the ball, the farther you can send it down the range.

It's a good thing you know how far you send the ball using your clubs, most don't know how far they'll send the ball using any club.

To help you put this in perspective, I hit my clubs as follows (3i-PW):

Up to indicated distance in yards.
3i = ~185
about ten yards between clubs
7i = ~150
8i = ~140
9i = ~125
PW = ~100

I do manage to hit every club shorter distances as needed. For example, I use my 5i for one 150 yard par 3 because of its special layout. I could not use my 7i for that hole. Again, I use my 8i for a short par 3 of about 110 yards because of the very high winds above the trees over the green. I put my ego in my locker so when I'm faced with a shot which I have no club for, I go there in two instead. And since I'm not so precise every time I use a club, I always use a longer club than I need to so that if I strike the ball badly, I still send it a fair bit of distance. For example, I will use my 7i for 130 yards on the course even though I can use it for 150yards in practice.