The battery in my car is fucked and needs to be replaced. How easy is it to change it yourself? I haven't done much stuff on cars but I'm not afraid of DIY stuff.
The battery looks like it is very accessible and that all it takes is to unscrew a few bolts.
Cars run on 12V DC, so you won't seriously hurt yourself even if you do it wrong. Unless it's a liquid electrolyte, and then try not to spill, although those are uncommon.
Make sure you throw the old one in the sea to help the eels, tho