Your total T is mid-range. But at 21YO, guys should not be there.
If you want to pursue this, you need to consider your low T a symptom and try to find the root cause.
Please see these stickies:
- advice for new guys
-- do not ignore the first paragraph
-- post more info about you
- things that damage your hormones
fasting cholesterol [might be too low]
So what are your "symptoms"? What changed and when? Anything else happened in that time frame?
Have you been cycling gear? What was PCT? Any prohormones? Any deca only cycles? Any hair loss drugs?