You have misunderstood both need blind and need aware. NEITHER will “guarantee” a full ride.
Many students find that need blind schools offer them less than what they will need to attend. Their money, their calculation. They will not consider your need when they decide to admit you- IF they admit you, they pass your application on to the financial aid department which calculates what THEY think you need, and calculate your award accordingly.
Need aware schools may or may not admit you based on how much aid you need. But again, there are no guarantees that the package they award you will be affordable.
You need a reality check here.