do you think I'll get held back?

here is the story:

I didn't finish 8th grade cause school got cancelled and I couldn't do online school like the other kids cause our family didn't have internet back then, then when 9th grade started we got internet so I could do school, so I tried the first month but I could barely understand anything cause I didn't finish 8th grade and my grades were really bad, since October I haven't done anything threw MY school, but I have been taking other online classes to try to catch up, so I re-took 8th grade online because I forgot everything over the summer so I just re-took the whole grade, a few months ago I finish 8th grade through online courses, now I'm doing 9th grade I just finished learning algebra now I just have ELA and chemistry to finish learning, hopefully I will finish learning them by the end of May so I can use the last weeks of school to turn everything in at my REAL school and prove I don't need to get held back cause I know this stuff, 

I just been learning Algebra, ELA, and Chemistry but I wasn't doing the electives, I know electives can be very educational but are they THAT important? I don't care if I have to retake my electives but I definitely do not wanna retake Alg,ela,&chem, also the school nor my mom knows that I've been taking online classes but I'm planning on telling them around the end of May, I was keeping it a secret from my mom cause she is a boomer and doesn't understand how the internet works so she thinks online classes are bad