On Friday, I decided not to leave the house, because it was cold an, instead I stayed home drinking beer but. Later, I changed my mind and decided to go out to eathave a hot dog.

You could say "to eat a hotdog" but it sounds more natural to "have a hot dog" or to "go for a hot dog" in thi sentence

As it was cold, so I had to wear a jacket.

On Saturdays my mom doesidn't prepare lunch, we haveeither had to cook something or go to lunch at the restaurant.

Saturday night at home I stayed at home watching The Godfather I on Netflix.

I think the movie title in english is "The Godfather"

Sunday was a day off and I drank, so I had some beers before lunch.

You could also say "I drank beer before lunch" if you didn't want to specify the quantity

At night I ordered an Uber and before going to the bar I had to deposites the rent for my father's workshop at the bank.

There were a lot of people there and to my concern no one but me and the waiters were wearing a mask.

"to my concern" is not something you would say in english I'm not sure what you would say besides maybe "to my surprise" or "I was concerned that" depending on what you are trying to get across

I fear the same thing happening in Europe,; a second wave of Corona virus.

Although the rates of contaminatransmitions and deaths have declined a lot here in recent weeks, I still don't feel totally safe.