By the end of 2019, I want to learn piano at a level where I can play proficiently. I have no money that I can spend to get a teacher or get practice books. I do not own a piano, but I still can play one at a public place during the weekdays.
I'm actively playing violin and have been doing so for seven years. However, I barely know anything even closely related to music theory. I can read notes but I don't know what they are called.
I understand the amount of time I have to put in piano to play it decently, and I'm willing to put that amount of time, but I'm not so sure where to start.