So…after a couple of weeks playing around with things on their own I’m starting to play around with mixing, but I’m worrying about over-powering people with the scents…I read some of the mixes people are wearing and wonder what the secret is to not smelling too strong.
e.g. tonight:
IOx2 - 1 spray right wrist
IHx2 - 1 spray left wrist
IG - 1 spray neck
and I felt like I was giving off a lot of scent. Is this a self-perception others are unlikely to pick up on or am I right to worry? 
The one’s you’ve listed are all Neroli scents. They power down incredibly about an hour into wearing them. While you may be giving off a lot of scent to begin with - re-assess an hour later. There is a relatively big difference
it may be best to ask someone else (if possible) if it’s too overpowering about an hour or so after applying. I only say this because you get desensitized to your own smell after a while and don’t notice it as much over time. I’ve been told by people many times that my cologne smells amazing 3 hours after I first put it on, even though I can’t smell it at all anymore.