Your brother is a junkie. He is also a loser as well. I think you should stay away from him.
If you don't go to work, then you might lose your job. I doubt your boss will pay you, for you not working. Don't blame your brother, or any other family member. You should blame yourself.
I think you are old enough to take a bus.
I drive a green vehicle, and I find it easy, for me to drive it. Because it's sort of like riding a bicycle. I have had many years of experience riding a bicycle, so, for me driving a green vehicle is not hard to do.
I think you would have to be at least 16 years old to be able to drive a green vehicle. I think you should further look into the age that's required to drive a green vehicle just in case if I am wrong about the age, and this is if you are interested in driving it to work.
I bought my green vehicle, for around $1,300.00. If you actually go to work, and save your money, then maybe someday you can buy your own green vehicle (electric bike).