Frigidaire is cooling but not freezing is clicking

My side by side frigidaire freezer stopped freezing but both sides are cold, it started clicking. I noticed that the fan in freezer is always on. I unplugged it for an hour and that didn’t help when I plugged back in.
I also have a issue with the ice maker, it only works when I open the door and pull the tray out, if I do that twice it fills up but won’t do anything automatically seems I need to trigger it by pulling out the tray!! It is also stuck on crushed ice…
I know with all the problems I just should replace it, but ma on a fixed income I have to fix it…
any help would be highly appreciated

Carol