It works!
I had to make a few changes to the board and the script to make it properly work. For the board I had missed to connect the motor to the right pin as well as redo the math. I should never have trusted the original website I checked in week 7 since I knew it was bad from the start. Instead I ended up doing some other calculations and figured that I only needed a 49.9 ohm resistor. The old board looked like 
this and the new one like 
this.
I SHALL FIX IT
The script was giving off error messages. The first one said 
"Software Serial does not name a type" but I solved it by adding #include <SoftwareSerial.h>. I still had an 
error regarding the loop command. This was solved by simply adding void (which I had originally accedentally deleted). After this it was 
all good!
AND IT SHALL WORK
I knew that the sensor worked since it was giving showing the 
input well and the numbers I'd be expecting. The motor wasn't working though, even after I remade the board. It ended up being a really simple problem, I hadn't changed the pin in the code. It started with 
the PA2 pin from the old board and confusing enough it was 
the PB2 pin on the second one.