I recently downloaded this game to try it out yet my wheel is connected but my wheel and pedals don't work when I go into the game. I've attached a photo of the settings as I'd guess that's where the issue
lies.

[ removed link to photo ]

I removed the link to the photo as it looked really dodgy and I didn't dare to click it.

Maybe you could have a read through instructions here:
https://en.lfsmanual.net/wiki/Options#Controls

If you still have a problem then maybe upload a picture using a legitimate image sharing site.

I have re-uploaded his screenshot from the other thread he created, which got auto-ignored

As Scawen suggested, read controls section in the manual page, especially the Wheel/Joystick and Setting up the wheel sections.

Basically you need to assign your functions on the left to the corresponding axes on the right.

Hey sorry if I sound stupid but how do I know what I’m assigning what to, I have no idea what I’m doing

You click the function on the left, then select the axis to assign it to.

E.g. want to assign steering wheel.
- click "Steer"
- move steering wheel so you see which axis is the steering wheel
- click that axis (on the right)

side note, separate your pedals

There is a detailed explanation of the process in the manual I linked above, I'm not sure if you've read it:

Quote :

3) Assign axes

With the axes list still open, you can now start assigning the different functions to the available axes. To do this, first click on the function you want to assign (e.g. "Steer"), then click on the axis you want to assign it to (e.g. "X axis"). Unlike in many other games, pressing the pedal or rotating the wheel after clicking on the function button will NOT assign the axis automatically!

After all necessary functions have been assigned, check if LFS reads the input correctly by rotating the wheel and pressing the pedals again. Now the steering indicator and pedal bars will move, too. If an axis/function operates the opposite way it should, click on the "invert" button found to the right of the function in question. If, for some reason you need to limit the range of some axes, you can do so by adjusting the range values (0-100% for both range ends).

There's even an animation of that: