Hope4, California was the first state to put "Stalker Law" on their books, and it is a felony. As part of that law, excessive phone calls and text messages as you have described is Stalking under their law.
You should have no trouble getting a TRO and then the PRO in place.
(((((Freeing Myself))))) There is no 'time table' sweetie. When you are ready for your next step (form of action) you will take it and not one second sooner. Be assured, no one here 'judges' you. Remember most of us have been where you are now, be it with a parent, a spouse, a S O, a child, a sibling, or even a life long friend.
So .......................................... in my book, I am very glad to see you posting again!!!
Love and hugs,