I tried Turn Up the Heat and Instant Shine several years ago- and both seemed to be too strong of a scent. Any suggestions for something milder?
Both are mild. AMMO, since it’s cologne strength, is strong. Maybe you have a sensitive nose. 
Check these application points. It might help.
Or you can choose a cover scent that you think your nose would be able to be in tune with. You can do that by checking this link after you order a 30ml of TUTH or any Instant products.
What kind of dose were you using - at 62, you should be able to use TUTH pretty widely, although it may be a bit overt in sedate environments.
Ammo or Ammo/Is is a good versatile all rounder.
Both TUTH and IS are 6% Neroli and seems to settle a lot better than the other scent options. The best bet is to use the link Dee provided and I don’t know if they can lower the scent % any lower or not. Doing that may effect how well the molecules diffuse as you need the scent to help lift the molecules into the air to effect your targets.
The best bet is if you still have those to is to spray them on and wait 10 minutes or so and try a cover scent that fits your liking and spray over that.