Tip: If that's your real name (user ID), you may want to change it. Usually not a good idea to use your real name on message boards.
Your stats actually look pretty good. Many SMU students go in with around those same type of numbers. In California, it really is a numbers game.
I know somebody who ended up attending the SMU ABSN program. She applied 3 times and finally got in on the third try. SMU does take notice if you keep applying. Bear that in mind. Also, apply to all three campuses. If you are only applying to one of their campuses, your odds go down.
The person I know who got in on the third try, set up an appointment with the admissions director/counselor of the ABSN program and went in person there. She told her, "give me your harshest criticism about my application and what I need to to do to improve my chances." The counselor actually gave her some sound advice and, in particular, critiqued her essay. From what I have heard from other applicants who have been rejected, they change their essay and that's what got them in the second or third time.
I do realize with Covid, the chances of going in person to see a counselor is probably nil. You may just want to email one of them and see if they can have a zoom meeting or WebEx with you and give you some advice and critique your essay. Just make sure when you set up the meeting, you let them know that you want them to look over your application - especially the essay. They can also let you know if maybe you need more volunteer experience. Sometimes they want to see a more consistent volunteer experience where you're going somewhere for a year or more straight. Again, that's just what people have stated, but the best bet is to contact the school itself!
Good luck and don't give up. When time is right, you'll get in