Training to become an HGV driver whilst working elsewhere?

Cheers for the input guys. I understand it’s preferable to keep working at your old job until you get your HGV license, I just wasn’t sure whether the course demanded 100% of your time, focus & attention. Using your holidays sounds like a plan. I think Hayley that does the Youtube videos about gaining your Class 1 gave up her teaching job and qualified over the school holidays.