The first thing you need to do is find an email software program. Then download & install it. Then you will need to contact an Internet Service Provider to set up an account with them & this will involve a monthly charge.
Once you have done this you should contact the Internet Service Provider again to get help on setting up the actual email settings needed & an email ID that suits you & has not been previously used with that company, so you may need to have a few ID's that you could use if needed.
You could ask the Internet Service Provider if they can recommend an email program for you, or you can search the web & read up on ones that suit you.