World of Light question

So being the noob I am, I went into WoL all willy nilly and just started playing without looking into walkthroughs or whatnot. Either way, I ended up taking the Marth path and later realized that I can't unlock Samus for a long time cuz she's in a whole different area. Is there anyway for me to restart WoL so I can just replay it and take the correct path to Samus?