You may be using your perfume too soon. .. it needs to mellow for about three weeks to gain strength.

Try a mixture of 1/4 cup vodka & 5-10 drops of essential oil. Put in a ***coloured*** glass bottle with stopper.. shake well (light can degrade essential oils.. that's why when you buy the oils they are in blue or brown glass bottles. Shake bottle gently once a day. After the 3 weeks.. strain the mixture through a clean coffee filter into a clean coloured glass jar. if the perfume's too strong.. it can be diluted with up to 2 tablespoons of ****DISTILLED*** water.. other water has too much gunk in it.

You might also think of using fragrance oils instead of EO.. they're generally less expensive, and people are less likely to have a reaction to them.

If you're making these to sell, eventually, you'll need to be using perfumer's alcohol. (put it in your search engine.. many sources).. the gov kinda frowns on the vodka thing.