Hey there! Welcome to PC!

First off, you feeling guilty about acting grumpy shows me that you aren't a bad person with an ugly personality but instead a hurt person with who is lashing out. And at 15, hey, blame at least half of it on hormone changes haha. Also, I'm sorry for what your mother said because that's definitely not true. She's probably extremely sad and stressed that she can't help you and can't get through to you. And her lashing out at you has made you feel even worse about yourself. I can tell you're beating yourself up a lot and it looks like you've been trying really hard to change. Change is really hard and often times the slowest thing in the world. Give yourself time to grow and please be gentle with yourself. You're still very young and growing pains are tough at anytime but puberty is really some of the worst. I think, perhaps it might help a lot if you had a heart to heart with your mom? Explain the way you have been feeling about yourself and it'll give you a chance to apologize for snapping at her. Clearing the air is always nice along with asking her to help you.

Second of all. I'm a major art junkie (Art Club VP of my high school haha) so let me tell you that there are a LOT of positions open in the art field. Yes it is a demanding job. Yes a lot of people get underpaid. BUT, there is a need for people with graphical art experience in logo making, web design, etc. And storyboard artists for commercials, movies, etc. Along with many individual artists who don't work for corporations who make plenty of money. If art is a passion of yours, please by all means, pursue it! (Of course, try the best as you can with other subjects but if art is what you love don't let anyone stop you!)

I hope things start getting better soon! And keep us posted in how it goes! Best of luck!