Hi, I REALLY need help, please!

Right now, the fresh food and freezer compartments are not cooling at all.

Let me list the order in which things broke:

1. First, the water and ice dispenser stopped working. The lighted buttons for "crushed ice," "water," etc. would still light up, but as soon as you tried to dispense into a glass, the lights would shut off and nothing would happen.

2. Next, the ice maker stopped working.

3. Then, the entire cooling system stopped working.

4. The refrigerator would periodically make a clicking sound, the condenser fan did not work, and the compressor was hot, so I checked the start relay. The start relay did rattle, so I replaced that part.

5. When I plugged the refrigerator back in, it turned on, but the condenser fan moved EXTREMELY slowly. It was difficult to tell if it was even moving at all. Of course, the water/ice dispenser still wouldn't work.

6. My dad thought he was smelling a slight burning smell (although I didn't smell anything...) and figured that since the condenser fan wasn't working, it should just be left unplugged.

7. So, is it true that if the condenser fan isn't running properly, the entire cooling mechanism won't work? I guess it won't speed up as it goes along, will it...? :/
So we are at a loss for what to do next... :(

Please help me!!!
Thank you SO much!
You are awesome! :D