Yes start you dont need anything more than you have. A few minutes a day. a barbell and a little gumption and hell your bodybuilding. Just go pick up heavy shit.
It can be a great stress releiver. You dont need a gym or supps to go Lift and better yourself. that can come in time. Do whayou can for now. No excuse in putting it off just because its not Optimal;. You will NEVER have the perfect situation. So if you wait for that you will be waiting FOREVER.
Also it could bge a GREAT stress releiver. Just take 10 mins and go toss round some weight. Every little bit is a TON better than the NOTHING you are doing now.
read godd ole' Vroom Beginners thread and go for it.
Come on back with any questions,