Hi Dillon and welcome to the forum!
As ruffinracin has given you some info already, I wanted to add that OD could happen at your age. You are a natural pheromone producing MACHINE! However, from what I’ve read from many others your age, you can try 1x spray with IG and see how it goes. Add another spray if you need to! It’s like using salt at the dinner table! I can’t tell you exactly how much! Just try a shake and add to taste!!!
IG is a more all around mone that you can wear anytime. I’m going by what you have already. If you had a social like Instant Openness or Instant Shine, you could go crazy with your sprays and the only likely negative effect you’ll get is that you’ll smell like a perfume salesman! (Though I personally love the smell of Instant Shine. MMMMM… IS…)
You can do the same for TUTH and see how it goes. Then when you mix them you’ll have a much better idea of the results to expect. I just read a guy using TUTH daily! HERE: I love Neroli!!!
But, your mileage may vary as many say it has women perceive you as a walking weenie! 
Everyone is different so your going to need to tweak the mones to you!
Let us know how it goes! 