"Just finish reading everything.
I don't want to destroy your dream but look at this game: https://en.wikipedia.org/wiki/Dust:_An_Elysian_Tail
made by one man in 2012 for almost 4 years of work. I think as someone told you before you will need at least 10 to 20 years to do DarkSouls alone.
In the meantime, there is hope. Just forget about Dark Souls for a while and make something that exists better for 2017. How? just go on youtube find those old Atari game and remake them, then modify it, make it better. With my level, I will make space invader clone in a day (using, of course, some codes I used before), so in a month I could make something totally different but still based on it. I can give you an example of my own game based on Pacman with now a totally different gameplay.
My advise if you don't know where to start is to participate in"2018 New Year Challenge: Missile Command" from this site. do your best, winning is not really necessary. try to finish your ideas within the 2 months of the challenge. Do it alone, you will get more experience from it than any of us can give you by our pieces of advice.
Here is the link for the challenge :
If you are not able to do it or think it is a waste of time or any reason ... Then I tell you cash "Look somewhere else, Video games are not made for you". Remember, winning is not important, spend 2 months of your time in this project and see what you can do will be important and will teach you what to do to achieve your dream of a better DarkSouls game.