If you will be claimed as a dependent on your mother's tax return then when you prepare your own tax return you will need to say in My Info that you can be claimed as someone else's dependent.
Social media platforms are a good start.
So it can be a bit of a shell shock.
It lets you know how to block subscribers you feel are harassing you or crossing the line.
If nothing else try the myfreetaxes website I linked.
Word of mouth is a great way of getting more people on board.