Plus some factors to consider beforehand
How to Delete Your Gmail Account
Have you ever felt like you wanted to disconnect all online accounts on your devices and just go back to the peace and quiet that you had before the internet? With all the noise online from ads, trolls, fake news, promotional and unwanted emails, it can be easy to feel like you’re living in a cluttered world and you just want to get rid of it.
Some websites and social networks allow you to leave with just a few clicks, but there are also websites and social networks that require you to jump through all sorts of hoops, while others make it nearly impossible to leave.
In some cases, a service may not be allowed to permanently delete everything you've posted publicly in the past for legal reasons. This means that some remnants of your relationship will remain forever.