The difficulty of hacking a rar archive, or how to store secret data in the cloud?

Question

Backup

Recently I came across an article, it seems on Habré, there was a picture of a burnt hard drive from a laptop that remained alive after the fire, after what I saw, I thought, because all my info is stored on a laptop and usb-hdd, if something like this happens then there will simply be nowhere to restore.
The first thing that came to mind was the cloud, there were a lot of them, but I just don’t want to upload my confidential data, as an option to pack it in win-rar with a password and put it in the cloud.
1. How difficult is it to crack a rar archive with a password?
2. What are the alternative options for uploading files so that no one can open it? You need it without being tied to the hardware, just some kind of password.
3.What methods do you use?

Answer 1

2. What are the alternative options for uploading files so that no one can open it? You need it without being tied to the hardware, just some kind of password.

truecrypt container file