Hi Shelle. Your awareness of the situation and the resulting damage of parent who will not let you learn to function on your own is precisely what is going to save you.

Have you ever told him that while you appreciate his help, you want to take care of things on your own and that when and if you need help you will ask for it? I have not been in the same situation so I am having a hard time understanding how he is forcing his help. I have no referent so I can think of all sorts of things to say but I have no idea how helpful they would be. Beyond saying something like what I said above, would telling him that his help is actually setting you up to be dependent on him all your life something that would work for you?
You ask how to be mad at someone who is so helpful. You do it by recognizing that you are being set up for failure as an adult. That your power to make choices, mistakes and even to fail is being controlled and limited by your father. That you are in essence being told you are not capable and strong enough to handle things on your own.
Almost every abusive and sick thing my mother did to me was from her idea and version of love. Just because it comes from a place of love does not mean it is right and that you can not be angry. My vote is to tell him that you appreciate his help but it is really hurting you in the long run. (choose your own words of course, but make them count!)