My first introduction to Linux was back in College in 2005. I ended up doing it off college but I’ve messed with Linux on and off over the years. A few months back I put GalliumOS on my Chromebook and I’ve done all sorts of stuff with the Raspberry pi. I wouldn’t say I’m proficient in the slightest and I know very few terminal commands but I think I can manage.
Oh, you’ll be fine then. Haven’t used Mint personally, but I’ve heard good things about it! Always reach out for help.