Hi, i am new to this field, running facebook ads, but conversion is very low, 95% of the people just take the free trials i offer and disappear. I currently target USA, 25+ year old, men and women and thats all, i have tried to add sport related keyword but the ads performed poorly, with the targeting i get 1.2-1.6$ per messaging conversion, with the sport related keywords 3-4$. Any suggestions on how to optimize the ads to get more conversions?