Diman,
First I'd like to say that I really admire your determination here.
You said somewhere about the games on "List of Ideas" being too hard for you. However, I think if you put your own determination to it, you would find that it is not so hard, it just requires patience, which you definitely have.
If you are really determined to get a run published, then find a game you like a lot or know well that hasn't been done, or that has been done but badly, and just give it a shot; stick it out until the end.
You can start a topic in the forum, and post your progress each level. There's a great uploading service by DeHackEd
here. Then, people could watch your progress and give you pointers. They aren't trying to put you down, just point you in the right direction. As you do this more, you'll need feedback less and less, as the "normal" things TASers look for will come to you more naturally as your experience increases. This way, you could use that determination of yours to continually improve your run until you finish it and submit it.
There is also a list of NES runs made with Famtasia (an older emulator without as many tools as FCEU), and they could all be improved. That list is
here. Just let someone know if you decide to work on one of those runs so it can be marked as such on the list.
Haha, I just read my own quote "as your experience increases" and it sounds like this hobby is an RPG. :p