Get training in as many skills as possible. You will have plenty of time later to develop decorative touches. Being an avid science-fiction reader, I like to equate our problem with the establishment of a human colony on a moon of Jupiter. Everything of a material and cultural nature must accompany us into an unknown future. The longer I study all of the complexities, possibilities, and permutations, the more questions appear.
Every answer seems to generate more questions.
There are few easy answers. Patience and persistence are critical. Develop these traits. They will help you overcome many obstacles and shortcomings of abilities, skills, and equipment. Develop your brain.