It is simple:

Дом= home, house

Дома= at home

Домой= homeward, homewards

"Homeward" is домой. "At home" is дома.

"I am going home" = я иду домой.

"I am at home" = я дома.

It's on ~. And if you use a phone, just hold down the letter е

You have to press e and ё and 5 will be appeared in top. I had the same problem but I found where is ё.

My keyboard has it on the key.

The infinitive is идти. This conjugates as: Я иду, Ты идёшь, Он идёт, Мы идём, Вы идёте, Они идут. It means "To go, unidirectionally, by foot (walking)".

The two most common verbs of motion in Russian, идти (walking) and ехать (driving) can be unidirectional or multidirectional.

Идти has a multi-directional counterpart: ходить.

You would use a uni-directional motion verb when saying, "I am going to school now." or "Я иду в школу сейчас". You would a use multi-directional verb when saying, "I go to school every day" or "Я хожу в школу каждый день".

Now, if you change the method of going from walking to driving a Russian would probably use a different verb(s) altogether: ехать or ездить

Я еду, Ты едешь, Он едет, Мы едем, Вы едете, Они едут

Я езжу, Ты ездишь, Он ездит, Мы ездим, Вы ездите, Они ездят

"Я еду в школу сейчас" or "Я езжу в школу каждый день"

There are other verbs for 'going' but they tend to be simpler and have specific meanings like fly, crawl, swim, etc.

There are many similar verbs that you can become familiar with, some are perfective, and others are not. They all have slightly different meanings: войти, зайти, уйти, входить, уходить, etc.

Good luck!