Chini, you have not responded to Shivangi or Drew. Are you still interested in learning English?

You use "from" to indicate a direction in most cases. for example "I am walking from the park to the theater." You can also use "from" to indicate the origin of something or a person. "The man is from Brazil"; "That gift is from me." In general when using "from" you are underlying a movement from point A to point B in either time or space. There is usually a progression of movement and/or time in whatever you are saying.

From is most used for separation and joining of sentences. Like I will come from tomorrow. We can start our lessons from today. Here two sentences are joined together and formed a new sentence.