It’s not just you - strips suck lol
You need a proper kit (Taylor k2006 or tf100/pro) + salt test - if you have a saltwater chlorine generator.
They can be had at tftestkits.net
Or amazon etc. but must generally be ordered.
See—>
Test Kits Compared
Until you get one in add 5ppm worth of liquid chlorine (unadulterated bleach/sodium hypochlorite) each day slowly infront of a running return to keep things from going awry until you have good data to work with.
Use
PoolMath to calculate amounts based on your pool volume & chlorine strength.
While you wait read up on
Pool Care Basics