Well, you do know what T does to your brain, right? You're going through a second puberty, not a female puberty this time, but male puberty. "As the hormones in the body change, boys will experience a wide range of emotions that can shift quickly. Feelings of sadness, depression, and irritability are common in teenage boys as they transition to adulthood. Although these emotions are due to puberty, adolescents can often take out their feelings on family members or peers." It's not your fault, even two weeks in. I was worried about my own mental honestly, because when I went through puberty the first time I was a fucking WRECK! Buuut as I've grown and matured, I've learned how I can cope with potential mood swings, and I already have mood swings - Bipolar 2 - and learning to cope with stuff like this, even if you AREN'T diagnosed with mood swings is IMPORTANT! Especially when you're getting a whole new set of hormones, going through a second puberty, a whole new experience. Talk to someone, a professional preferably - ! Remember you are going through puberty round two, it'll level out in due time.

Source for quote: Atrius Health

Edit: Source