Jonny,
Being the same age as you- hopefully I’ll be able to help you out a bit- although everyone’s experiences with mones are quite different, and everyone has different mones and mixes that work for them.
In as far as using antiperspirant is concerned- I always use it- I’ve heard a few things about not using it maybe enhancing applied pheros- but it could also be that your natural mones plus the applied ones might be A. contradicting each other (eg the signatures don’t match) or B. your natural mones and the applied ones may be too much- as you say, a potential OD and the accompanied ghosting effect. There’s certainly something to projecting the same vibe as your pheros- so if you put on ammo- you need to project an image of confident and playfully sexual yourself, too.
It sounds to me like you may have used a bit too much none that night- for me personally, even one spray of TUTH can sometimes be overkill- I tend to go with 2 AMMO to the chest, and instant openness to the wrists- maybe instant shine to the neck. Don’t underestimate the power of socials- particularly in toning down some of the more overtly sexual mones- they can be invaluably helpful. I would order a few socials if the bank account can spare it- and try balancing out a couple ammo shots to the chest with some of those- it is all about experimenting though. I know its a clich?d response, but it genuinely took me quite awhile to get even the rudiments of pheros down- and I’ve still got a lot too learn. Best of luck fella!