You should take the last paragraph and do exactly that - nobody that loves you would want you to feel the way you do, and generally I've found in life that the

You should take the last paragraph and do exactly that - nobody that loves you would want you to feel the way you do, and generally I've found in life that the thing you are afraid of doing is exactly what you should be doing (or to phrase it another way, if you took fear out of the equation - fear of failure, fear of telling your family, all fear) then what decision would you make? Your in a rut - you want to do something but you are afraid - I say go do it, and jump right in! Even if your startup fails, you'll land on your feet somewhere and will be a lot happier than where you are right now.