Backup is an art. Third parties are bad like banks and retirement plans, in the sense that you do not have the ultimate control of your data or money.
For doing backups, I think that ‘tar’ is the best, but try not to go too much fancy (like incremental backups). When you think about it, backup is just data processing.
A word of advice, do not compress and encrypt at the same time. Some specialist on encryption will tell you that is a bad idea because it really weakening the encryption. Encrypting WILL compress your data anyway.
Also, do not use file-system or operating system encryption. They change too often and when ‘upgrading’ your operating system, you may find yourself with an unusable file-system. It is better to use some sort of ‘bucket’ encryption like Truecrypt (now Veracrypt), and store your sensitive information on it. That way, you are also not wasting resources on encrypting everything and you will have more atomic control over what you encrypt. The backups will also be simpler.
Like always, your main problem will be to remember or storing your passwords.
>>> “Like so many things I’m supposed to do but don’t — getting exercise, eating right, sleeping well, standing up for women and minorities in public spaces — backing up my data has always been something I’ve half-assed at best.”
magnusson.io/post/backups/