Start the day

I usually get up very early, but today I got up late because I´m ill and I have a stomach ache, but I should still have to work.
I´m going to (keep a positive mindset/think positive thoughts), I can do it!

(Almost the same as Bree's correction but I added a couple extra alternatives for the last sentence). Feel better Ysabel!

Start the day

I usually get up very early, but today I get got up late because I´m ill and I have storache (an ache/ a stomach ache?) but I should still have to have work.
I´m going to think positively mind, I can do it!