How will people recognize one another and distinguish between forms on the Day of Resurrection if their forms are similar and they are all of the same age and height? And will they remember what they did in the worldly life?

People in Paradise will be the height of their father Adam, which is a similarity in size and a proportion of beauty, not an exact match in descriptions. Allah is capable of making them distinguish each other. A person will remember what they did in the world, good and evil, on the Day of Resurrection, and in Paradise, they may remember some of that.