The increase in disk space?
I can increase the disk space for me to the host?
You can increase your droplet's disk space by taking a snapshot of it, destroying it, and creating a new droplet off of the snapshot. See How To Resize Droplets Using Snapshots.
Given I understand your question. The answer is Yes, you can increase/resize your server resources.
https://www.digitalocean.com/community/tutorials/how-to-resize-your-droplets-on-digitalocean