i want change my server
While doing something you haven't done before can feel daunting, don't forget about Linode Support. We're here to help you through tasks like this. Support is available 24/7 through tickets, email (firstname.lastname@example.org) and phone (855-4-LINODE (855-454-6633), or Intl.: +1 609-380-7100).
We also have a lot of documentation about either migrating from another provider or resizing your current Linode:
Migrating your server to Linode:
Making changes to an existing Linode:
If the documentation isn't addressing your specific needs, feel free to reach out to Linode's Support team. You're also more than welcome to ask your own question to our Community site here.