On inconsistency Your life should never be the same as it was the day before. Your routine may stay the same, but the way you do it and the way it affects you should not be the same. For example, you spend 15 minutes every day learning a foreign language—but no two days of learning the language are the exact same. On one day, you knew less, and on the next day, you know more. You are constantly progressing and there's no consistency in progress other than the rate at which you progress. Don't let consistency restrain you from new experiences, either. I've seen you turn down great opportunities to pursue a project or work later only to go to sleep because you have to stay consistent. It can be argued that you can continue the work in the morning or wait for another day to pursue the project, but why do that when you have the vigor and excitement to do it now? Build flexible time into your life so that you don't find yourself in a state even resembling stagnation.
On friendliness In the unfriendly and anonymous environments of large cities, friendliness sticks out like a sore thumb. The people that smile at you are outliers, not the norm. Understand how disarming a smile is. No matter the level of anger or misery you may see in another person, a genuine smile is one that cannot be mistaken as malevolent. Practice this and live up to this. For what reason would you be otherwise? That isn't to say that you should walk around with the sole goal of being friendly because that would not be good according to reason, either. In addition, being friendly to please your own vanity would be a horrible misstep on the path to reason. Friendliness can still be powerful and not for your own good but for the good of others. Recognize that in the examples in your own life and emulate it where you can.
On writer's block There is no such thing as writer's block, only writer's confusion. You cannot write because you are not clear on the ideas you want to convey, not because you don't have ideas. Perhaps the prescription for writer's confusion is the same as that for writer's block—lower your standards and keep ideating. You might come across an idea that's worth pursuing and refining. You might also discover that your original idea was plain bad. Don't hesitate to leave the idea alone and pursue a better one. Remember that you should always have an end in mind because the beginning and the middle can be formed around that end. If you don't know what goal you want to meet with your writing, stop and figure that out first.