Taking statins

I am 29 with an LDL of 201 and a total cholesterol of 263. I have a family history of high cholesterol and I am currently pre diabetics. I am currently taking 10mg of atorvastatin. Has anyone seen a huge decrease in LDL taking statins? How long did it take? Were you able to get off the medication asap? Did it raise your blood sugars? All information helps. Currently experiencing muscle aches and hope this isn’t forever.