I feel that it's a good idea to take pointers from a guy who has done an incredible job of designing basically everything. From graphic design, to fashion, architecture, furniture, kitchenware and more, Massimo Vignelli has revolutionized the way in which we think about "design," and how it can live in every aspect of our day-to-day lives.
I recently watched the documentary, Design is One, and took away a lot of great insights that I hope to implement into my own design process.
Design is not art. It serves a utilitarian purpose. Although Massimo made what some would consider to be "art," he definitely did not see it as that. For him, there is an underlying structural formula to everything he created. His design work was the result of a tried and true process involving a rigid grid system to determine the spacial relationships of different elements in his compositions. His aim was to visually communicate in the most effective way possible, and to create products for ease of use. It almost seems like the beauty of the objects he created was a side effect. I find that pretty fascinating.
Leave your ego out of it. The task of the designer should be iteration to society, not to their own ego. The ego should be happy when you have done a job that is useful to everyone.
If you can't find it, design it. Pretty self-explanatory. We are surrounded by ugly things, and sometimes the best solution for this is not to settle, but to make an effort to make things better.