UCSD chances please!!

Intended MAJOR: math-cs
Uc GPA: 4.05
Sat: 1440 21/24 essay
Sat 2 math: 680
Essays are solid imo worked rlly hard on them
My ecs include community service, internships(coding), clubs, awards, teaching at coding academy, sports and various leadership positions through High School
I have an upward trend in GPA. Freshman I had a 2.5 and junior year I got it up to 4.0
I know math cs is now impacted so i am thinking I will probably be accepted at undeclared. What do you guys think my chances are? If I do choose to go I will try to switch into math cs because the lottery system for cs is too risky…also because the min GPA is a 2.5 so if I do really well my chances will also be higher…

What are my chances for admission? How hard is it to switch into math cs?? Thanks!