To determine sex without cloning can only be done by switching them into flowering right? Can you clone after putting them into 12/12? I apologize, i am obviously newer to this and appreciate all your help. I would love to use all my closet and turn it into four seperate areas, and i could, i just dont have the money for new lighting to that extent. Its not necessarily a continuous grow as it is producing enough to last between harvest. if ya know what i mean. lol
The plant will show it's own sex when it reaches maturity (While it's still in Veg). However you can induce maturity by switching to a 12/12 cycle also. I wouldn't do or recommend cloning after already in flowering honestly. I don't like to stress my plants out too much, especially in flowering because it can cause the plant to turn hermie.
As far as more yield I would recommend LST or SCRoG but I think your plants are too old now, try looking into supercropping. However with most major training, you need to train majorly in Veg only, go a little lighter on the training in flowering. With 3 plants under a 250 you'll be able to grow them to about 3-4 feet high, so I mean it's not that bad of a yield.
For a cheap veg area you can go to walmart and get a power strip, 8 daylight CFL's, 10 Y adapters, 2 outlet to light adapters, 4 teir white plastic Plano brand shelving unit, plastic white shower curtain or mylar gift wrap, and a fan or two for like 40-50 bucks out where I live. Prices might differ in your area. As far as a cheap-o cloner, tupperware, airpump, heating mat, another power strip, 2 daylight CFL's, and 2 outlet to light adapters for about another 50-60 bucks.
So I mean you could build it cheap, if you can save up like 100-200 bucks you can definitely pull off a cheap veg and clone area. After you save up more you can upgrade the light and other things in your veg and clone area.
Also no need to apologize, we're here to help with questions. Hopefully this helps you out some, if you need further detail feel free to ask.
Edit: Lol wow I obviously smoked 1 too many there, SS is short for Super Skunk.