Remember Cas, when you are camping you are intruding on the habitat of certain insects and will never be able to fully get rid of them.
Firstly I would suggest buying a tent with a fly screenso that even if it is very hot you always have a barrier between the insects and yourself.

Secondly , you can spray the tent with insect spray when you close it up for the day so it will be insect free when you return in the evening.

Thirdly (this is my prefered option) understand that apart from wasps, tne majority of insects offer no danger at all, particularly the crane fly (daddy-long legs).

The easiest way of dealing with wasps is to mix a little jam,sugar of fruit puree with water in a jam jar and place it in the open a short distance from your tent.The wasps will much prefer that to the scent of you. Also if you must use hairspray, deoderant,showergel etc , make sure that its fragrance free - and NEVER WEAR PERFUME.
if you smell like a flower ,you can't blame the insects for getting confused.