The Last Day of 2021 The Last Day of 2021

This is more appropriate as a title

At last, - today is the last day of 2021. At last - today is the last day of 2021.

Many coworkers go to theiron vacation, and the rest of the workers, includeing me, goet off/leave work early. Many coworkers go on vacation, and the rest of the workers, including me, get off/leave work early.

Many of my coworkers go to theirare on vacation, and the rest of the workers, include me go offing me, leave work early. Many of my coworkers are on vacation, and the rest of the workers, including me, leave work early.

you could also write 'and the rest of the workforce'

My wife and I are going to visit a bookstore to buy new textbooks for my kids. My wife and I are going to visit a bookstore to buy new textbooks for my kids.

My wife and I visited a bookstore to buy new textbooks for myour kids. My wife and I visited a bookstore to buy new textbooks for our kids.

Put this in the past tense. I put 'our kids' assuming they are your wifes children too, if they are 'my' kids then that implies your wife is not the mother and sounds a bit odd.

And we are going to have dinner near the bookstore while we talk about theour plans for next year plans. And we are going to have dinner near the bookstore while we talk about our plans for next year.

And wWe haved dinner near the bookstore whileand we talked about theour plans for next year plans. We had dinner near the bookstore and we talked about our plans for next year.

I was taught in school to never start a sentence with 'And'. If you wanted to use the word while you would write 'While eating dinner, we discussed our plans for next year.'

From the review ofLooking back at 2021, we had a lot of good experiences and tried to do tons of things for our kids. Looking back at 2021, we had a lot of good experiences and tried to do tons of things for our kids.

We hope that we arwill be able to have better lives next year. We hope that we will be able to have better lives next year.

We hope that we are able to have betteimprove our lives next year. We hope that we are able to improve our lives next year.

This sentence would be used after writing about something that didn't go well in 2021.

Good byeFarewell 2021, and welcome 2022. Farewell 2021, and welcome 2022.