Baeritto,
You have a great bunch of experts here helping you. I just want to give you a piece of advice that will help - POP (Pool Owner Patience).
Right now the best thing you can do is....slow down. Your pool is a green swamp. It did not get that way overnight and it will not be fixed in a day or two. You are likely going to be at this for a week or more based on the condition of your pool and the fact that you are new to pools. I suspect that you might be a Type-A, Go-gett'er personality that wants to jump on problems ASAP and fix'em fast. I can tell you that this is not one of those things that can be fixed fast. It is going to take a lot of your time and focussed attention to get the pool back into top-flight shape. Once it is fixed the TFP way, you will be bored with how easy it is to maintain. But, for now, you're going to need HEAPING doses of patience and perseverance.
You will have a great pool again, I can promise you that.
Good luck,
Matt