And now I'm a squirrel

I accepted this request to go to another world, with the promise of magic powers few would refuse. Especially when only ten thousand would be accepted. I quickly selected yes and was bombarded with options to choose from. Long story short, I took too long and was assigned a squirrel as my race. A being called the Mother Tree gave me a quest that would allow me to turn back human, although she recommended that I didn’t. Though I could really care less. I would not be stuck in this tiny little squirrel body. To top it all off, I was also given a blessing by the Mother Tree. It allowed me to summon a familiar. This familiar turned out to be a human, a human from earth that I later found out. But I’m getting too far ahead of myself. I was given a blessing by the system, with absolutely no instructions on how it worked or how to use it. Luckily, it was a pretty basic ability. Although that stupid yellow bar took forever to refill. Also, did I mention that for some ridiculous reason, I can no longer use curse words?