I know how you feel too. I often feel very frustrated and I think that stuttering have stopped me from achieving many things in life. And when I have my lessons with students and blocking starts, I want to give up on everything. When it comes to medication, I have been put on Citalopram for other health issues l, but that was in a period when my stutter wasn't a big deal and I had it under control, so I can't say anything about effect :) I also put some filler words, and they did help me in the past, but right now nothing helps :(