Hey,
I think some of the ideas you promote here aren't particularly sound advice.
Let me break some of these statements down.
The human brain has been developed in such a way that we pay attention to negative and positive effects of everything in our life. When the negativity increases it shows that our growth has stopped. On the other hand, if we are thinking positive that is the only way we will grow. When you are working hard to achieve something it is important that you only pay attention to the positive thoughts. The sooner you will get rid of negative thoughts the better your life will become.
Ignoring negative thoughts is basically denial. What you are promoting is the avoidance and or suppresion of emotion. Why do you think our brains developed to feel negative emotions? Because they inform of us somthing important! We are all invested in our goals, sometimes we put huge amounts of effort into them. This means we become so invested that we don't even realize when those goals have become unrealisitc. We engage even further because we are holding out on those goals turning into reality. This can go on until the only thing that can deter us from our obsession is a strong emotional response. DEPRESSION.
I am sorry to say, but I think avoiding your negative emotions will only put you on the path of creating unrealistic goals, which will bring a great backlash.
In my opinion, self-actualization has more to do with finding a societal niche that makes you feel like a unique and contributing individual. This state is a form of content that is beyond feeling good or bad. And the path to finding this state is to balance the good and the bad emotions and learn how to re-appraise the negative emotions. You should never ignore them however. Hope this has been a constructive criticism.