Low Testosterone Symptoms. To anxiety?

Hi doctor, I recently got my testosterone checked through a blood test, after suspecting low T due to many symptoms, and my Total Testosterone level was 442 ng/dL, which comes within the normal range, as per my endocrinologist, but others say it's low for my age. I've been an obese child for a long time now, ever since I was 6 years old, till now, though obesity has slightly decreased since past 3 years. I feel a variety of symptoms that could indicate low Testosterone like: •Low energy and feeling sleepy throughout the day •foggy mind and lack of concentration, and weaker memory •I'm kinda depressed too • reduced growth of penis as per my genetic potential (it's around 4.5-5 inches in length and 4 inches in girth) • I'm obese (as told earlier, with a BMI of more than 31) I've been facing these for the last 3-4 years, but thought they could be due to lifestyle too, but since the past month, I've had a low libido and erectile problems too (could be due to anxiety regarding this too)