To answer your question
To go natural and to restart your system as quick as possible without experiencing significant symptoms of a T crash you will have to reverse 2 things caused by TRT
- leydig cell atrophy in the testicles (if you havent been using hCG along T)
- restart of the LH secretion by the pituitary
Want you want to do first when stopping TRT is to use hCG to reverse leydig cell atrophy which happened in the testicles due to the supression of LH on TRT.
Its difficult to predict what dose you will need to do that but it will be something between 400 to 1000 IU eod for 1 to 4 months. Best is to start 500 IU eod a couple of days after your last T shot, measure T after 2 weeks on hCG and adjust the dose of hCG according the measured T levels. You will experience a growth in testicular size during this time. You can also skip this phase and immediately go on clomid, but the advantage of using hCG is that you can provide your testicles with supraphysiological concentrations of LH (which hCG simulates) and thereby spped up the process of atrophy reversal.
After 1 to 4 months on hCG you can start with clomiphene to reactivate the pituitary to secrete LH again. You would take between 12.5 and 25 mg eod for 1 to 4 months (start with 25 eod, depending on how you react to clomiphene and what you can tolerate modify) with the last hCG shot. Clomiphene is composed of two parts, an antiestrogenic part (enclomiphene) and a estrogenic part (zuclomiphene). On TRT or on hCG LH secretion is blocked mainly by estrogen coming from the aromatisation of T. Clomiphene can (partly) override this negative feedback loop, because the enclomiphene part will block the estrogen from binding to the receptors in the pituitary. Thus it will speed up the process of getting your pituitary to secrete higher levels of LH by tricking it into the belief of a T and estrogen deficiency.
Once clomiphene is stopped you will drop back to your natural T levels.
TRT is safe and the benefits outweight the risks. Its just a question of dosage. Physiological levels can be maintained mostly by around 75 mg weekly. Erythrocytosis (high HCT) is directly related to the T dose.