10 degree pitch up for takeoff???

have you ever noticed that in the 737 when you takeoff to a 10 degree pitchup to get airborne, the tail hits (or at least skims or gets too close ) the the surface!!!!!
!!!!!!!!!!! scary
I noticed this when i was practicing my takeoffs and then saw them on instant replay.
(I use 15 degrees flaps, set trim, FD and roll at 130knts)
But also if i make a less than 10 degree the plane dont seem to takeoff
what am I doing wrong?
I leave in Honduras and in MHTG we have a very short runway.!!! in wich you dont have that much space to roll
thanks for any of your data.
Rodriguez

I noticed this when i was practicing my takeoffs and then saw them on instant replay.
(I use 15 degrees flaps, set trim, FD and roll at 130knts)
But also if i make a less than 10 degree the plane dont seem to takeoff

what am I doing wrong?
I leave in Honduras and in MHTG we have a very short runway.!!! in wich you dont have that much space to roll
thanks for any of your data.
Rodriguez