Citation for Paraphernalia

My question involves criminal law for the state of: Texas

i recently was given a citation for possession of drug Paraphernalia and i happened to be within 1000 feet of a school. what do you think will be the extent of my consequence? this is also the first time that i had ever received a ticket or been arrested.

also, what can i do afterwards as far as expungement?
I've never been in any trouble like this and i am definitely getting nervous. Thanks to anyone that can help!!!