huuuuge responsability! But to quickly answer your question, getting a dog it's ALWAYS worth it! Just make sure you get the dog for the right reasons, i.e. not to"fix" you but to be your friend.
Make a list with what you (don't) want (egzample: not shedding, not needing much exercise, not barky, not too bright - those needs huge amounts of mental stimulation, not too... whatever) and then have a look around. Best way is to go meet a breeder and take it from there.