You ask. We answer
"I started feeling like my hair was not growing right some time during the past 2 years and I confirmed it when I did a length check at the beginning of this year and I had only grown about 2 inches of hair over the past year. What can I do to make it grow again?"
The first thing you need to do is retrace your steps. Have you slacked off on your routine lately? Nows the time to get back on the ball.
Don't forget that your hair can suffer from routine fatigue so switch up your regimens and products and treat your kinks to something new.