Hello. My Idea Is Not To Buy A

Hello. My idea is not to buy a robot that is already made, instead I want to be able to make on with my ideas. I want a house assistant. One that can recognize objects and people by taking advantage of artificial vision. One that can follow voice orders for different actions and that can aid in house security. It's knowledge would be stored in a data base. I want to clarify that I have a degree in electronics but nothing in programming. I've researched various languages to find one that would best suit my needs and age (I'm a 60-year-old kid, haha). I think I have found the right match with you guys. I hope to integrate some the small projects I have created with Arduino. I would appreciate any help.