1) Your situation here with lack of responses is by no means unique if you check out the complaints and frustrations on the forums here. Overall your profile is very good.
2) What would put me or some other men off initially is this comment. "They should be ambitious and get what they want out of life!" Sounds like you are looking for your super sales CEO or rich entrepreneurial type of guy. This as well as other statements like financially secure, very generous et al makes a lot of men, even those who are this way, very apprehensive if the lady wants a meal ticket, is a gold digger and would she stick around if his financial fortunes change for the worst down the road.
Now probably what you meant was that you don't want to take on some lazy good for nothing or be a nurse and a purse but it is best to choose ones words carefully because if something can be misunderstood, it will be misunderstood.