Timothy Goodman went from a tough childhood in Ohio to painting houses for a living, before painting major murals in Williamsburg and working with huge brands like Apple and Uniqlo. Now, he’s designed the latest Kevin Durant Nike. A troubled kid with lousy grades and raw ambition, it was getting his act together through therapy and moving to New York 19 years ago that Goodman found himself — and no small amount of success. His graphic memoir “I Always Think it’s Forever” is out this week.