Advice wanted on starting TRT

I'm a 42-year-old male, 6’2”(187.96 cm), currently around 241 lbs (109kg). Body fat approx. 28-29%. Actively working out 4-5 days a week cardio/lifting heavy and trying to cut another 30lbs and recomp (taking tirz).

I’ve had multiple morning testosterone tests ranging from 310–417 ng/dL, with my most recent labs showing total T of 368 and free T of 48 pg/mL.

My biggest issues are severely reduced libido, rarely having morning erections, fatigue, reduced motivation, mood changes, and brain fog. I have Hashimoto’s/hypothyroidism that’s treated, sleep apnea controlled with religious CPAP use.

I spoke to a clinic they want to start me on 150mg Test C a week split into three 50mg injections Mon, Weds, Fri. Is this reasonable?

I’m considering TRT because these symptoms are affecting my quality of life, despite trying to address the other contributing factors. I’m interested in hearing from guys who had similar numbers and symptoms. Did TRT make a meaningful difference in your libido, energy, mood, and overall quality of life? Anything you wish you’d known before starting?