As you all know I am new to this!

I tried the crickets. Henry loves canned and fresh but I have no clue how to keep and raise them to make more food. I got the silkworms today. I was hoping I could buy a "pod" every other week. No way! He loves them and wants to eat them all in one day! So.... I'm grossed out but ready to think of raising roaches. ( I can honestly say that is a sentence I would have bet money that I would never say or type! LOL!) Please explain the "home" for the roaches, the type of roaches, and how to care for them. ( Other than calling pest control! ) OR home and care of crickets would work too. Something that will reproduce food is what I am looking for. I have decided Henry must be around 6 months old because of his size and the fact he prefers insects over greens. I am really new to all this and the dragon books don't really help at all. I take excellent care of all my pets and it would just kill me if Henry got sick because of my ignorance.