150/7=21.4 mg per day
21.4X3=64.2 mg ever 3d
Or 75 mg e 3.5 days. Easiest. Since you inject same day every week. Like Monday morning and Thursday PM.
For 64 mg - So if your testosterone strength is 200mg per 1ml you would
1ml=1cc=100 units=200mg
.01 cc = .01ml=1 unit=2mg
**Syringes usually have units. **
1unit=2mg
So 32 units = 64mg
Which I think you were right just got the place value wrong. You said 30-32 cc but it’s actually .32cc or .32 ml or 32 units. This will all change if the strength of your testosterone is not 1ml /200mg.