If you're not aware of the letsencrypt project, let me teach you!
This wonderful organization is basically handing out free money, in the form of SSL certificates.
So if you're savvy enough to self host your sites, you should be able to do this pretty quickly also.
If you're like me and you have snap package manager and nginx installed all you have to do is:
- SSH into your server
- Run these commands
sudo snap install --classic certbot sudo ln -s /snap/bin/certbot /usr/bin/certbot sudo certbot --nginx