Switch no longer controls outlet
Are you testing the receptacle on the top half?
The end the red wire goes to of the receptacle?
It looks like you have it wired correctly the bottom receptacle will be always hot (the end with the 3 blacks) and the top will be controlled by the switch.
That is how you have it wired and that part of it is hot all the time I believe you are checking the wrong side because it is wired correctly.
Now for the critique, although a back and side may be listed for 3 wires the wrap is 2/3 to 3/4 around the screw. A better method would be to add a wire nut and short piece of wire so the 3 wires are connected securely and only 1 wire is under the screw