I screwed up today...

I have some classes today and the first class starts at 10:40 a.m, but I got up right now. It's already 2:00 p.m now. That's hilarious!!! Im a stupid of the stupid ya know!!?? In fact, I really regret.

I screwed up today...

I had some classes today and the first class was at 10:40 a.m. When I got up, it was already 2:00 p.m. That's hilarious!!! I'm the stupidest of the stupid ya know!!?? In fact, I really regret waking up late.

 ****That's just my take on what you were trying to say but if this all happened in past tense then you need to represent it in past tense. I figured you were going with a phrase there so I used a word that doesn't even really exist "Stupidest" but it's just a phrase so eh.. lol you're doing well though, easy for me to still understand ^_^ 

I screwed up today...

I have some classes today, and the first class starts at 10:40 a.m, but I just got up right now. It's already 2:00 p.m now. That's hilarious!!! I'm a stupid of the stupid the stupidest of the stupid, ya you know!!??! In fact, I really regret it.

***

Notes:

1. You used "got up" (past tense), so "just" (to refer to immediate past) is more natural than "right now" (to refer to the present). Of course, either way, we know what you mean, but "just" is more precise if you're talking about something that happened a few seconds or a few minutes ago.

2. You said "It's already 2:00 p.m. now." In this case, the "now" is implied, so you don't have to say it. It's not wrong to say it, though.

3. You used "ya" instead of "you." Well, there's casual English, and then there's really casual. If you're texting friends, whatever -- "ya" is fine. But the rest of your entry isn't written like a text. It has a little more structure. Therefore, "you" is more fitting.

4. You said "I'm a stupid of the stupid." "Stupid" doesn't function as a noun. So we need something like, "I'm the stupidest (person) of the stupid (people)." Nouns for stupid people: idiot, moron. "What an idiot!" "What a moron!" These are mildly insulting. Other ways of conveying your idea: I'm the [dumbest] person alive. I'm the [dumbest] person on the planet. I'm the [dumbest] person on earth. Dumb is a common synonym for stupid. You can put whatever adjective you want in the [brackets], and it's an easy way of making a hyperbolic (exaggerated) statement.

5. You used "!!??" The more common way to express emphasis and puzzlement is "?!" Again, this is sort of a ridiculous point for me to make because we are talking about the "right" way to use punctuation that would never appear in formal English. All I can say is that "?!" is more common. Your way still conveys the information.

6. Regret. I guess regret is a transitive verb, and we often follow it with..."it." I regret it. Do you regret it? That sort of thing.

Everything you wrote is clear. People would understand you. So everything I've written is just technical details.

I screwed up today...

I had classes and the first class started at 10:40 a.m. but I just woke up and it's 2:00 p.m already. That's hilarious!!! I'm the stupidest of the stupid, ya know!!?? In fact, I'm really regretting this.

I screwed up today...

I have some classes today and the first class one starts at 10:40 a.m, but I got up right now. It's already 2:00 p.m now. That's hilarious!!! I'm kind of stupid ya know!!?? In fact, I really regret am really regretting this right now.