I sound like a 14-15 year old boy and I'm not on T right now, don't know when I can be but is there anyway to make my voice deeper. I saw on youtube the thing about the Ding Dong, King Kong thing but I can't seem to speak from the chest without sounding retarded.

I once heard someone saying it wasnt only to sound deeper but also to sound more hard on!
strange to explain but like insteed of a gently voice you sound like your hitting a wall with it, like punshing it with your voice,
I really dont know how to get it on words and I dont know if it helps.
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In generally I think singing training can be good, I use to singing to traine my voice both experience the chance of T to make it high, but also to  get it deep for the deeper songs before and after T.

When I sing the Mr. Sandman song I sound like a guy singing it, but only on the very last part when you have to make your voice a little higher. Lol.

I also made a thread about this very same thing, https://www.susans.org/forums/index.php/topic,107731.0.html

between the two of us, I hope we can figure out something.  i don't even sound liek a 14 year old boy.  I just sound like a total female.  I hate it.

My friend who doesn't plan on going on T or anything has trouble getting the "voice" down. Sometimes when we go out we claim he's a "mute" and I do the talking, which can actually be kinda fun 

I think he does a good voice occasionally when he really tries but he isn't confident with it yet. He mostly seems to pass when he talks in public, tho he mumbles a bit and speaks quietly so its harder to catch. The worst thing is the lack of confidence in his natural ability to do a male voice makes him frustrated and not even want to practice.

I try and tell him the only way to get better at something is to practice. Hopefully we can get to a point where he'll feel safe speaking in public and still passing but the "mute" thing works for now.

All I can suggest is try learning to sing like you're in a Death Metal band. Guys tend to speak from the gut compared to girls with their head. My natural male voice didn't change much at all during puberty [Thank you Lord] But  way back when, if I had been out at a metal night club then my voice was pretty low by the end of the night because I'd sing along with some of the songs played.  And you could really feel your voice coming from your chest. So with some time and practice I'm pretty sure you can increase your lower pitch. However, T will really help, unless you're like me. then what was lucky for me will be the pits for you. Good luck hun.