CSUs have only 3 things that matter - a-g course list, CSU GPA and your SAT/ACT… I don’t know where you are ony any of those fronts but, continuing your coursework through graduation (vs a GED) gives you a chance to boost your GPA while you meet the a-g requirements - and earn your HS diploma. All will put you in a better place. Also, I can’t imagine you ever regretting earning the diploma (though it seems likely you’d regret not having it.) To get into a non-impacted CSU, you need about a 2.4 GPA and 1000 SAT to be admitted as a freshman.
Where do you stand on the a-g courses and what are your other qualifications?