Welcome on board bro.
Only your blood can tell you the information you ask for.
you need to take a certain dosage for at least 5 weeks and have bloodwork, see estradiol levels and decide whether to increase or decrease the Test dosage.
Beware that you should not only see testosterone and estradiol, but have a complete picture of all other hormones and overall health levels.
Also keep in mind that things change over time, as your body changes (less fat, more muscle, etc.) your estrogen levels will also change.
What is good today does not mean that it will still be good in a year.
So the key word is to be constantly monitored with bloodwork.
Finally, as a supplier I can only recommend PSL