i want to build a robot that c

i want to build a robot that can lift and carry heavy weight so that elderly can buy item and put it on the robot.It can walk around and accompany them.i want a robot that can change the health of people with back pain .Using it's camera recognition, it can follows the owner ,hold item using heavy duty actuator.By putting various type of sonar sensor it can avoid hitting walls and other items .It can also be used to lift furniture for less work and no pain ,fast result and it can be control via Bluetooth .I want to help disable people by making it into a movable chair too .Connect to the machine and control the machines movement with their fingers .I hope it interest you guys ,i really think it is different and hope to be able to build it .I don't have any programming experience and would love if you guys could help me figure it out.i love robotics and it has been my passion since as a child .pls help me change lifes.