An hour and a half a day is plenty of time to eventually title your dog. How many times a week are you meeting with your trainer? Club days are usually long, but it would be beneficial for you to find a club and go, if your schedule permits. It will let you observe what other handlers/dogs are doing, as well as get other eyes on what you and your dog are doing. Titling a dog, when it is your first one, can take a while. But if you and your dog are enjoying the work, who cares how long it takes? In the end, the relationship you build with your dog means more than the title ever will. Good luck to you!