This is what works for me: 1. Get up early, very few distractions and the mind is fresh, work non-stop for about 4 hours atleast. 2. Keep the browser closed an

This is what works for me: 1. Get up early, very few distractions and the mind is fresh, work non-stop for about 4 hours atleast. 2. Keep the browser closed and open it only if necessary. Having only the code editor and other necessary files open makes a big difference. 3. Get your life in order, there's no way you can focus for any length of time if there's drastic conflicts, stress, relationship problems, etc in your social life. 4. Exercise and keep healthy.