I wWant to tTravel.

I livinge in Brazil, but one day iI want to travel to Europe and visiting many countries.

"I want X" -> used when X is a noun
"I want to X" -> used when X is a action

visit should match the tense of travel

I aways search about plane tickets, credit cards to use there, where to visiting and any other stuffsinfo.

AnThe other day I was searching for info about foods and I met an English guy with a new way to cook steaks, mainteaining the meat inat the correct temperature,. I tried antd it was awesome.

I wWant to tTravel.

I am living in Brazil, but o right now. One day i, I want to travel to Europe and visiting many countries.

I always search about plane tickets, credit cards to use (there), where to visiting, and any other stuffthings.

Stuffs is not a word.

Another day, I am search abouting foods and. I met an English guy withho taught me a new way to cook steaks, by mainteaining the meat in correct temperature,. I tried this method, antd it was awesome.

I livinge in Brazil, but one day i, I want travel to Europe and visiting many countries.

Good overall!

I aways search aboutfor plane tickets, credit cards to use there, where to visiting and any other stuffinteresting things.

Some small things again. You look at "Where to visit" and not "where to visiting".

AnotherSome days I search about foods andlook up foods and because of that, I met an English guy with aho taught me new way to cook steaks, and how to maintenaing the meat inat correct temperature,. I tried antd it was awesome.

"Another day" is very specific but I think you mean this quite broadly so we can use "Some days" here. "Research foods", "Look up foods", "Search for foods" are all more suitable. We keep things "at the temperature" and not "in the temperature" in this case. For example, "I keep my baths at 40 degrees.", "I keep food out at room temperature".
When using commas for lists, the final item in the list is often added with `And`. For example: bread, meat, milk "and" eggs.

I'm living in Brazil, but one day iI want to travel to Europe and visiting many different countries.

I am always search abouting for plane tickets, credit cards to use there, where to visiting, and any otherll kinds of different stuffs.

Another day, I searched about foods and I met an English guy with a new way to cook steaks, mainteaining the meat inat the correct temperature, I tried it antd it was awesome.