How can I improve my English at home and from should I start?

Ways to improve English and enrich your vocabulary :

*, READ ENGLISH BOOKS & ARTICLES*
You must have a daily habit of reading every day!
Reading is a fantastic way to help you with your spoken English. You will learn new words and phrases, plus it will help you remember English grammar.
You can read whatever you want, *but you must read.*
Read novels, stories, the news, history, websites or comics — no problem. *But learn something every day.*
Take whatever you are reading and *read out loud.* Go somewhere to a quiet place
Don't read out quietly!
*Readout with a loud voice*. It is a great way to help you with spoken English.
All you have to do is look at the reading material and read it aloud.

 *PRACTICE ENGLISH COLLOCATIONS*
English collocations are groups of words that are usually used together as a phrase. They are very common in English.
By learning these, you will make your English sound more fluent, more natural, more like a native speaker.
These are some examples of English collocations:
Go on a trip
Take a nap
Make a suggestion
Get permission
Do my hair
Have lunch
There are English collocations everywhere you look.
Any time you find a new English collocation, write it down in your notebook.
It will help you with your spoken English.
 
*SHADOWING*
Shadowing is an excellent technique devised to speak fluently.

To do the shadowing exercise, you will need the following items:
A smartphone
An English audio recording — maybe a podcast or a news report
A transcript of the record — this is all the words said in the podcast typed out for you to read
A pair of earphones
A small amount of courage!
Once you have all of these things, then you need to follow these steps:
ONE
Listen to the podcast or news recording. Is it too easy? Too difficult? It has to be something at YOUR level but with just the right amount of challenge for you.
TWO
Listen again and again until you can understand as much of it as you can. You need to be able to understand what the speakers are saying and the context of the podcast or news report.
Yes, there will be words you do not understand — don't worry about that. As long as you know most of it, that is enough.
THREE
Listen again, but this time read the transcript to find out all the new and challenging words. Pay close attention to these words. Look them up in a dictionary.
Listen to the sound of these new words.
FOUR
Listen again and — as the speaker is speaking on the podcast — read out the transcript at the same time.
There should be a slight delay between the speaker and your voice. It is the 'shadowing' aspect of this exercise.
Repeat this section a few times until you feel comfortable saying most of the transcript.
FIVE
Now go outside. Take your smartphone and earphones with you.
Go outside and walk around at a quick pace.
Get your energy levels high!
Play the recording on your phone and repeat everything you hear. You should know most of it from practising stage four.
No, you will not get all of it right. You will make mistakes. But don't worry!
Keep your head up, walk at a quick pace, and look in front of you with confidence.
I can promise you this has a potent psychological effect!
SIX
Keep trying. Try to repeat all that you hear. Speak loudly and clearly.
You might feel very shy to do this at first, but it will make you feel more confident later.
This exercise can help you with speaking English
Keep doing it until you can say all the recording without making any mistakes.

OTHER METHODS TO TRY
There are a few different methods you can try on your own. These can also help you with English speaking.
Watching English-language movies
Talking to yourself in the mirror
Reading out loud
TO CONCLUDE
The point is, it all comes down to how much work you are prepared to do.
The more you put into it, the more you will get from it.
 
If you go to the gym only once a week for three hours, how much benefit are you going to get from it?
What about if you went to the gym every day for 45 minutes?
It is much better to practice English every day for just a short time than to do marathon sessions once a week.
All the best in your learning journey:) make the best use of this time to sharpen your skills.