This guide will walk you through the process. Basically you will need to:

1.) Create a backup of your MySQL database.
2.) Create a backup of your web files
3.) Create a new LAMP/WordPress or PHPMyAdmin droplet on DigitalOcean
4.) Copy your files to the web root of your new droplet.
5.) Import your database
6.) Check that wp-config.php is updated to match your database.

Okay thankyou so much!

How do i do it without facing downtime..? May i change the NS after migrating all files and DB to DO from my prev Host..? Pls lmk asap, Thanks