how easy is it to change a fuel filter? Should i get it only from dealer or partstore?

if it's complicated work i'll just bring it in to get it change. Filter is at least 10000km old & tank/fuel line are 243xxxkm old.

Just like the other day when it was -15?c out, truck couldn't start due to fuel problem. I went back a day later (warmer t?) & it started again. ??? Water in fuel?

91-22re(408xxxkm & counting with a rebuilt long block)- Flatbed/Camper
/33x10.5BFG-AT/Open 4:88/1.5"BJS/
+2"Shackles/Add-a-Leaf/AirLift/Dual-Batteries