Uffern

I know that in some animals, they become more aggrssive during puberty and mellow out a bit afterwards. My Arg B&W Tegu is nearing two feet. He is becoming a little harder to handle, though I try to every day. He isn't biting or tail whipping, but he is rather squirmy at times. My question is, will he calm down a bit after he reaches maturity? At about what size is that?

Also, other than fatty jowles, what are some secondary sexual characteristics that I can look for to help determine sex?