Get your hands on three factory fletched arrows of the same make and spine.
Spin test your arrows.
Refletch 3 arrows that are flying bad.

Silencers will slow the string a bit. Maybe 5 to 10 ft/sec. Shouldn't affect arrow flight.

Be sure to use the same jig/clamp on an arrow for all fletches.

whats a spine test? also i did this free handed and w/ no clamp so i guess i did not place my fletchings in the right positin and juss did it badly and that is why they will not fly right correct? thanx for yur response

You'll need to puchase a fletching jig. The fletchings need to be at the same angle from the line of the shaft. The angle is not critical but, they must be the same and equally spaced for balance.
Spine is the amount the arrow bends under the pressure of the string at release. You need to find a shaft that is properly spined for your bow and shooting style.
After the arrows are complete. Set a broadhead and spin it on the tip of the broadhead on a tabletop. If it wobbles when it spins, you need to adjust the broadhead or reset the insert. Whichever applies.
Be sure that the fletchings, if plastic, clear the riser and rest.
If you don't have the equipment to build a proper arrow. You'd be best off to purchase factory arrows and enjoy shooting them.