Is counting a good meditation?

Like a lot of people these days, we probably have a bit of adhd thanks to smartphones and social media. So whenever i try meditations my mind just wander off to billions of places. The only thing that could kept my head from going off is just simply counting. Focus on the number, pace the tempo, 1 second per number until. i reach 600 so around 10 minutes.

Is this a good method to practice focusing my mind? Or are there better methods out there?