Today is definitely busy, but I still quickly shot a quick video that I want to show you guys. Today is definitely busy, but I still shot a quick video that I want to show you guys.

Your sentence is fine as is, though I think this wording sounds slightly more natural.

However, I don't think I have enough time to upload it tonight., so maybe tomorrow. However, I don't think I have enough time to upload it tonight, so maybe tomorrow.

So maybe tomorrow. So maybe tomorrow.

I recommend merging this with the previous sentence, unless you’re going for an abrupt style.

So mMaybe tomorrowI'll do it tomorrow instead. Maybe I'll do it tomorrow instead.

sentence as-is is not bad, but sounds a bit abrupt

So maybe tomorrow. So maybe tomorrow.

This is ok for an informal text but not a full sentence grammatically.