I am excited today because it is my day off.

DI am definitely, I am going to get take out my lunch to McDonaldfrom McDonalds for lunch.

I promised about it to my familymy family that I would.

I am expecited today because it is my day off.

I was not sure what you meant by 'expected' here, so I guessed at what you may have wanted to say.

I imagined that I would havehad gone to close a hot spring today.

This is similar to a previous sentence. I prefer the previous sentence...

I am going to get take out for lunch tofrom McDonald's.

I am excited today because it ismy day off.

Definitely, I am going to get a take out my lunch tofrom McDonalds.

I promised about it to my family.

I am expected today because it is my day off.

I imagine that I would have gone to a close a hot spring today.

close has 2 meanings.

going to 'a close hot spring' means you will visit one near by.
going to 'close a hot spirng' means you stop it from being open.

I am going to get a take out for lunch tofrom McDonalds.

I am excited today because it is a day off.

DI am definitely, I am going to take out my lunch toget a take-away from McDonalds.

I'm British so we say "take-away" but you can also say "I am going to get a take out".

I promised about itthis to my family.

I am expected today because it is a day off.

I imagine that I would have gone to close a hot spring today.

This sentence sounds like it needs another clause e.g "I imagine that I would have gone to a hot spring today if there had been one close by". Or, "I imagine that I would have gone to a hot spring today if I hadn't gone to McDonalds."

I am going to get a take out for lunch ato McDonalds.