If your scared of needing with your thyroid hormones get off the t4 the body is going to shut the thyroid down and ur going to have to taper off with t3 since its active ur not gonna get shut down as quick and ur body is actually able to use all of it cuz uts active so unless u have a thyroid...
PEDS are fine at any age if used AAS 18+ if u been lifting for a long time, people have this misconception that steroids are so bad there legal almost everywhere but US