>>19146932>throw a few swings at it, cut it a few times
You can't throw swings, you're using a spear.
You can't "cut it a few times", you're using a *spear*.
Assuming the bear is moving towards you (which it is, because it's trying to kill you), moving the spear from side to side will allow it into your reach, resulting in your death.
Likewise, stabbing it in the wrong place will allow it to break the spear and move into your reach, resulting in your death.
The "stab it in the throat" bit is good, although you can't allow yourself to go onto your back because this a) causes you to lose all mobility and b) gives the bear a greater chance of breaking the spear.