It would be great to see the historical time when Gutenberg invented printers and changed the world. People became able to read the Bible by themselves without the help of the priests thanks to been published books. People read a lot of things about other countries. They got to know there are unknown worlds. I think the period is similar to "the Internet world" which I we live in. Columbus who read Marco Polo's book about Asia tried to go to India and found, "New World" America. He changed the view of the world completely. It was about fifty years after Gutenberg had invented printers in 1445. Steve Jobs who was fascinated with "Walkman", which were individual devices used to listen to music, made personal computers and invented the portable mp3 player called "ipod". And as you know, he released "iphone" in 2007. It's been just only 10 years since then though, the world has been dynamically changing everyday. It's too fast. I'd like to see Columbus period and compare with Internet period. How did people react and adapt to evolution? How did people struggle with the new lifestyle? Of course, I can learn with history books but I want to see it. Seeing is believing.

Lunch Box

I make a lunch box for my son between Monday and Saturday in the early morning starting at five thirty.

Actually I need to make a preparation the night before.
For example, if I make Tonkatsu in the morning, I season meat with salt and pepper then put it into the egg liquid with flour , finally roll it into bread crumbs which is a preparation and make cook fast in the morning.

While cooking, I try to organize a box with
three major nutrients, protein, fat and
carbohydrate.

Although I try to make a lunch box at a low cost , it is still hard for me.
To make a lunch box at a low cost means
I need to learn how to make variety of food

I am getting used to make a lunch box however I sometimes over slept in the morning then I ask my son to go to a cafeteria for lunch.

Corrections: 

I make a lunch box for my son between Monday and Saturday in the early morning starting at five thirty.Actually I need to do preparation the night before. 

For example, if I make Tonkatsu in the morning, I season the meat with salt and pepper then put it into the egg solution after coating it in flour, finally I roll it into bread crumbs which is my preparation for cooking fast in the morning. 

While cooking, I try to organise a box with three major nutrients, protein, fat and carbohydrates. 

Although I try to make a lunch box at low cost, it is still hard for me. 

To make a lunch box at a low cost means I need to learn how to make a variety of food. 

I am getting used to making a lunch box, however I sometimes over sleep in the morning then I ask my son to go to the cafeteria for lunch. 

Sparkling Water

I always buy sparkling water of a little bit strong bubble. When I get feel tired I drink it add a little bit lemon juice then I can relax and I feel like rid of tiredness. I drink at the most one liter a day.

Corrections:

I always buy sparkling water for the strong bubbles. When I feel tired I drink it and add a little bit of lemon juice then I can relax and feel like I have gotten rid of my tiredness. I drink at the most one litre a day. 

Please correct my English !!

Recently I have hobbies and I would love to explain about those my hobbies.

In fact I didn't have any hobbies before. My hobbies are hot yoga and hiking.The reason why I have those hobbies are is because I was in Canada. I was really touched by the nature many times there. I had never done yoga and hiking before. I had the chance to try to yoga because my friend took me to normal yoga gym but I felt it was so so at the time, then my share house owner landlord introduced me to hot yoga and I really enjoyed it because I probably love to sweat so that I feel more relaxing  relaxed. I decided to practice hot yoga in Canada but unfortunately I quit it within a month due to end up of the trial course because the cost was very expensive, so I just gave up.When I came back to Japan ,I found a good hot yoga studio and I am practicing yoga.

The other my hobby is hiking.My first time to go hiking was with my friends and second one was in Machu-pichu. I like to see a the view from the top of the mountain after we made it. I like to find hobbies so I am looking forward to finding  a new hobby soon.

Please check my sentences

Thank you

Yellow words are my corrections/suggestions. 

Lined words are your mistakes

I think generally your sentence structure is pretty good. I think focusing on the difference and usage of "the" and "a" will really help you in the future. If you need any explanations I can help you.