@amishmanish thanks for clearing some things, I have more questions 
Okay I get it I have to open a payment chanel to transact. But what if I don't open a chanell? How are others going to send me via segwit? Will others need to open a chanell with them puting their money and me putting 0btc?
One thing, by using these addresses that begins with "3" am I automatically using SegWit? And If I am automatically using SegWit how is channel even being opened when I can simply generate paper wallets with these "3" and receive lots of coins without even going online and contacting any node to open a channel for me or to open one myself. Or I should look at them as ordinary btc addresses that start with "1"?
Could you comment on this? https://www.youtube.com/watch?v=UYHFrf5ci_g and read first comment there if you have time
Okay I get it I have to open a payment chanel to transact. But what if I don't open a chanell? How are others going to send me via segwit? Will others need to open a chanell with them puting their money and me putting 0btc?
One thing, by using these addresses that begins with "3" am I automatically using SegWit? And If I am automatically using SegWit how is channel even being opened when I can simply generate paper wallets with these "3" and receive lots of coins without even going online and contacting any node to open a channel for me or to open one myself. Or I should look at them as ordinary btc addresses that start with "1"?
Could you comment on this? https://www.youtube.com/watch?v=UYHFrf5ci_g and read first comment there if you have time
I think you are getting confusied between SegWit and LN. SegWit was a soft fork that was needed for further improvements. Lightning Network being one of them.
You open a channel once with another node and as the network becomes connected enough you can use the funds in the channel to make microtransactions and other people can find you on that network.
There is a cool visualization of the LN on mainnet. (its down right now for some reason). Keep in mind that its in testing mode now and only the experts are involved in it. Though, its a golden opportunity to learn for anybody with enough time, computer hardware and a desire to get their hands dirty.
For your answers to the new address forma, you can check this reply from Carlton Banks.
Thank you fro taking your time to explain things! This graph doesn't look like network being centralized.
Anyway so I can't send more money from which I have currently in a channel via LN? Is it limited to that amount that I have put aside in a multisig?
I guess I will have to try to read a bit more what is SegWit and what is Lighting Network if they are separated, thought they are similar things like SegWit is just some sort of tweak of Lighting.