Learning methods

I've been learning English for almost 16 years but I haven't been consistent for many reasons that I'm going to mention.
1. The study program just lasted 4.5 years of English at highschool + 2 years at the university.
2. It wasn't necessary at that age.
3. Lack of motivation.
4. One entrepreneur I met said that learning English was a waste of time. I took that bad advice.
5. English courses and materials are pretty expensive. I couldn't afford them.
6. I had bad English teachers.
7. I didn't have access to the Internet.

Well those were some reasons why I wasn't interested in learning English. However, all that time spent in it, it actually help me nowadays. Although I am not fluent yet I can understand 80% and I can speak the basis.
English is required in a lot of jobs because the business are international you have always to deal with the customers, workers, managers, suppliers, etc. and plenty of the information is in English.
I agree with the program total immersion, I think it's the best to learn a language but sometimes you need a teacher to explain you at least the basis of the language.
The languages that I tried to learn are:
1. English. I'm still working on learning it, because there are a lot of vocabulary and expressions that I haven't mastered yet. I'm not fluent yet.
2. German. I studied it for a week, but I really got mixed up my mind with English language and I quit because It's not easy to get a german friend to talk to.
3. Chinese. I started to learn chinese 2 years ago because I ran across some voicerooms on the web and a chinese school taught it online. It seemed to be interesting for me, but that only lasted few weeks the voiceroom was canceled and I had many chinese friends but due to the time It was difficult for me to talked to them. I stopped to learn it for a while but I still learn it from time to time.
4. Portuguese. I took some online lessons and It really worthed it. Because it is a roman language I was familiar with the language, and I learned the basis quickly. I just study it for fun from time to time. I have many brazilian friends who I can talk to. Sometime I ended talking in portunhol (a mix of portugues and spanish).

The keys of learning a language are:

A) You have to speak it as much as you can although you don't have plenty of vocabulary.
B) Listen to any audio in that language.
C) Speak with natives speakers.
D) Write a lot.
E) Chat.
F) Motivate yourself.
G) Be consistent.
H) It's better to study 1 hour a day than 5 hours in one day.

What do you think about it?
I'll be looking forward to hearing news from you, feel free to leave any comment. See you next time.