There is no reason for you to be in a hurry to get anywhere right now, no matter what someone else is telling you. So take all the time you need and make no apologies for it! You have the right to do the amount of research that makes you feel good about your decision. And the more you can map out your plan of action in detail, the better things will go for you. Tell all the people who are pushing you that they are wasting their time. Assert yourself and stand your ground.