Brake emergency

Bled it..mostly. When I got to the last wheel (Right Front), the little bleed screw was smaller than the others (smaller than 1/4) and stripped. Impossible for me to get at it. I didnt see any bubbles anywhere while I was bleeding.

Tried another test up on stands. Still same, back left wheel would not spin when brake was off, but would spin when brake pedal was down, but if I really pushed hard all the way down, it would start to slow the wheel.

Took it off stands, drove a little, doesnt feel like it is dragging. But man it is hard to stop. Impossible to get it to lock up.

Taking it in for shop to adjust and inspect. thanks for all your help