I liked your blog! You are very pretty! And there is absolutely nothing wrong with your voice! I think you said you have an exam coming up?...Good luck and try to ignore the urge to eat because your stressed about it.
I think you are too hard on yourself. I enjoyed your vlog very much; it was a real person talking about their real life and where they are. I think a lot of people can relate to that. Keep at it, that fact that you are getting up when you feel you've slipped is what is important.
Good for you for stepping out of your comfort zone and doing a vlog. I've never done one...as a matter of fact I've never blogged until recently. :) Something about not letting people know what bad shape I'm in I think. Anyway, you did great...and your voice is fine...although I can relate to that as well. Sorry you've been having trouble staying on track...stress is a hard one! Just keep starting over as many times as you have to in order to reach your goals. I'm guessing you wouldn't give up on med school...so don't give up on a healthy future.
Maybe the best part of doing the vlog is to show yourself how far you've come...and give yourself some honest feedback.