I have testosterone defiency because of subclinical hypothyroidism and i want to know if this depletion will be recovered after hypothyroidism treatment. 18 year old male ?

Good first step.: It’s worthwhile to try to correct the hypothyroidism (which we wouldn’t really call “subclinical” at this point if it’s causing a testosterone deficiency) and see if your testosterone levels increase subsequently. Be patient, though, as this may take some time - like several weeks to months. Better to try this than to start testosterone supplementation at your age and in this current context.