Replying to Heelflip

Some of u skate so I thought I would ask
How tf do I stop my back foot from pussying out on this trick?
I got the flip part down, and everytime it comes down I land with my front foot on board but my back foot just decides to go on a fuckin walk around the neighborhood
what do I do too land on the board?
do my shoes need heat sensors?
Or do I need a magnet surgically implanted in my foot so it lands on the board and dosnt just decide to go jack itself off everytime I try this trick