Jazak Allah khair for sharing; i have read it before so many times. May Allah Ta'ala accept our salah and give us strength to reach level 5...Ameen

This is how I ignore the distractions during salah
1) Think of it as it is your last salah
2) Imagine as if you are standing in big open space, no one is there except as if you are standing in front of Allah Ta'ala

If the above ones do not work then try these
1) Imagine that every time you concentrate more, you kind of get closer to Allah Ta'ala, like literally the distance is decreasing--moving closer towards Jannah
2) Think about your sins and what will happen if Allah Ta'ala did not forgive you or not accepted your salah