Great to have you started. Juju can be daunting and a bit steep learning curve, but once you get hold of it - you never go back.
I would recommend attending the workshops on fridays to get started and learning.
Here is a link to this fridays workshop. We are bootstrapping Americas atm, but we also run EU workshops. [community event] Americas workshop: juju/lxd/kvm
@tmihoc @ppasotti @hmlanigan @hallback @mcjaeger are some that are frequent community participants and knows ways in and out of all this.