If you were 18 years old again, a freshman in college with 160 hours in your log book, an instrument rating and the desire to fly for the majors, what path/steps would you take to become a major airline pilot? Below is a rough draft of my plan.

Commercial at age 18 with 250+ hours
Multi and CFI at 19 with 300 hours
Start instructing at 20 with 300+ hours
Finish college at 22
Move to Regionals at 23 with 1500 hours
Apply with Majors at __ with _____ hours

First of all I want to make sure my plan is a realistic one. I also want to learn from others having experience going from student pilot to a major airline pilot and figure out what makes the most sense for today.

I'm all ears. Thanks for your advice.