This is a good site to test if you have a DNS leak:
https://dnsleaktest.com/
Setting up your own VPN at home as Quoth mentioned above is good. If you're not technically up to doing this, an SSH tunnel can be used instead (SSH is usually easier to set up for most people, but you still need to know what you're doing to make your SSH server secure).
But watch for DNS leaks in your setup ... use the test site above to check for them. Google "SSH port forwarding" or "SSH tunnel" to find out how to set up tunneling. If you have a DNS leak, a middleman server will not be able to see WHAT you are downloading (it will be encrypted), but they can see WHERE you downloaded it from. To keep them from knowing the WHERE part, you need to verify that you do not have any DNS leaks.