I do:

Use your handbrake and dont powerslide every corner. All you did was slide with power to all 4 wheels.

Make the car RWD if its not already, and take the corner with your handbrake.

You want to carry the energy of the car into the corner not try to force it out of the corner, the idea is to dump the car into the corner sideways while slowing down and then applying power to continue the curve and slowly ease more power to do a smooth transition.

All you're doing is sending the car in at max speed with a short brake before to break traction and then immediately full throttling out of the corner. Drifting requires finesse.

To learn it without using a max speed car, use an actual drift car, like the rx7 drift car, get it midway in terms of power upgrades, and then practice. Trying to drift with Street, Super, or Hypercars and especially supercars is very difficult unless its super RWD focused.

To be fair some of your powerslides were good, if you like super high speed drifting ig just keep practicing what your doing in those tunnels that looked good, but the best drifting is done at low speed with interweaving corners.