18 is not late. You are about the right age to get started. Its great if you have started earlier. Programming is about constant learning. Its not doing someth

18 is not late. You are about the right age to get started. Its great if you have started earlier. Programming is about constant learning. Its not doing something repetitive. Keep in mind, it takes about 10,000 hours of programming to get proficient in it. At 8 hours a day it is 5 years of effort. But, in reality it may take 10 years to reach the 10,000 hours of learning. Join a startup or a good school, where you can meet awesome peers. With great peers you learn faster.