Two challenges on my mind!!

I've got two things I want to do right now that normally someone as young as me wouldn't do.

First, I've always loved cats. I've become a great expert at drawing them, or at least compared to what I did before (for example, see my art topic for the newer drawings). And for some reason, my art confidence has been greatly boosted ever since I made the drawing in my signature (Which I attached so you could see the image). I've been to four or five different art galleries in my entire lifetime, and one of them had coasters (like the things you put cups on) with cat images on them. That made me want to draw even more. Now, I'm kind of thinking about asking my mom for a canvas so I can make a cat painting and sell it to the gallery.

The second one, I'm more determined on doing. Last night I had a dream I was a sea lion and lived in the body of water near me (which is a watershed called the Puget Sound). I was swimming to hunt for those delicious salmon at about five in the morning, but I couldn't find any. I wondered why, and when I tried going deeper to look, the silt on the bottom of the lake (I was in a very shallow area) was black and fetid with tar from the nearby industries. That was why there were no fish. I woke up inspired to write a chapter book titled "We Can Save the Puget Sound!" inspired by the dream, and noting how we can help take care of and even save the life of Puget Sound, and actually publishing it.

Do you think I should do this? I'm very set on both but still rather unsure.