Try to do it inside, garage, workshop or the like.
I had my first go on the drive !!!
Even on a dry day with next to no wind dust seems to find its way back onto your clean window. The second time I used some anti static screen spray from my computer which seemed to work reasonbly well mixed with soapy water.
There are also different qualities of tint film, the thicker the better, it goes on easier and has less chace of creaseing.