[[ Important update! There are three more lines you should uncomment that I didn't have in this video because I didn't know it was needed at the time! Uncomment these three lines from the client1.ovpn:
Remove the pound signs in front of these three lines. These add extra security.
In this video, I will give an example of installing an OpenVPN client on Linux. Since it's a little bit different than Windows and it might be similar on MacOS, I thought I'd go ahead and make an example video of this, as well.
You can make sure it's working correctly by going to https://www.iplocation.net/find-ip-address. It should list the same ip address as your droplet.
[[Update! One of the commenters on the Windows video pointed out a much better site to use-- https://ipleak.net/. In addition to telling you your apparent ip address, it will test to see if your proxy is working correctly.]]
I can't make detailed instructions of every single platform that uses an OpenVPN client, but, hopefully, with this example, you'll be able to figure it out on the platform of your choice.