Once I figured out that hitting enemies with the wood would also restore fire points it became easier haha. Though I think the spawn rate makes it a little impossible to get higher than around 500 points? If there were some other skill-based element that could give you the opportunity to overcome the deficit that builds up that would be cool. Rescue flare that you can use to signal for an airdrop if you time it right while a plane flies by? Not sure haha.
EDIT: Oh! I forgot to mention the graphics! That tree animation is so sublime! Looks extremely cool. And I love the fire crackling sound effect, wonderful.