I am so fucking behind on online school wtf do I do

SO umm basically I had to switch from in person to online like a few months ago due to mental health. At first, it was SO much nicer, and the first few weeks were great. Then like randomly don't even remember when but I got behind a tiny bit and realized my parents didn't check when I was doing it. So since even then I was still kind of mentally checked out I just stopped doing it at all for MONTHS. Yeah, MONTHS anyway 266 (about) missing assignments later I finally am doing better mentally and in all other ways have been doing great until just like earlier today my dad casually said "Oh Hey just saying your online school is ending soon and I will be checking your report card soon so if you're missing anything get it in," and it hit me that while I was checked out and then finally getting things back together I basically forgot school existed, and come early June when I'm at least meant to end online school and my dad finds out IM LIKE 3 MONTH BEHIND. I'm totally screwed. Probably going to just have to like buckle down for like 2 weeks not talk or like do anything but work (I've done the math it would take like 345 HOURS to do it all.) so probably going to have to do like 12 hours of just work a day and prob still not get it done.)

But man......It took me years to just motivate myself to keep living and take care of myself now that I finally got that down Idk how I am going to be able to find any motivation to do this let alone like NOW basically

ANYWAY, this was kinda just me complaining but if anyone else does online or has any tips or motivation its very welcome or maybe someone can relate Idk, I'm going to bed