I don't have any great advice of my own to offer, but I have been given some valuable advice from others and will share a bit of it with you.
I don't know if it is relavent to your situation, or if it will even be useful to you, but it was a big help to me when I wanted to just give up on it all.
I do think that we are in similar situations, but mine is a painfully slow process and it takes months and months to even take a step forward.
I had to step back many times and re_evaluate everything.
I questioned myself and what I wanted, and I still do, but sometimes there are people who can offer up a bit of information which makes me want to keep going forward.
First figure out what type of submissive you are, what you want from it and need from it, and how you can best utalize it.
You can't force someone to be Dominant, you can try but if they have little to no desire to be Dominant, it can be a lesson in frustration in topping from the bottom.
You have to let him go at his own pace, he may not be all that comfortable, but may not want to let you know, he wants to please you, but will not satisfy or understand his own Dominant side if he is uncomfortable going too fast.
Yes communication is a valuable tool, find out what his needs are, why he ticks, what he wants, how you can best satisfy him with your sumbmissiveness.
Patience is easier said than done, and no matter how irritated you can get, you still need to have it. Try and figure out ways you can be submissive to him, without him even having to be Dominant towards you. Those small little things that you do, may help the process along.
You can never have your cake and eat it too, 24/7 is not all that it is cracked up to be. I have always hated people who told me that. Why would you state that you are in a 24/7 D/s relationship, yet tell me how hard and difficult it is. Why would they be in it then?
Of course a fantasy is a fantasy, real life always overrides a 24/7 D/s living arrangement. I am sure that there are some who live that life out to the fullest of its potential, but most don't.
My opinion, is that 24/7 is two people who are in a commited relationship with each other, who as well share a common bond and enjoy that power exchange and try to incorporate that into thier lives whenever they can.
Being submissive is not getting what you want all of the time, it is focusing on his needs, and ensuring he is happy. Your wants and needs are met through his satisfaction, not through your own.
I don't know if this advice will help, it helps me when I am frustrated and feel like smacking the Domliness into his brain.
I hope that you can move forward to what you want, you do deserve it.