if you so far just tried to grow some bag seeds you still may start with an easy strain since this seed cost money and don't come for free along as beg seeds "do". so i don't know how well you did on them but some easy and potent in/ as well as outdoor strains are skunk#1, a oldy but a goody that can take shitless beatings of a noob-grow and still nail his ass to the couch.
big bud, which can sometime be a bit more trick, since it can't that much abuse as skunk can. but it can be a real bud bomber and is a killer smoke!
and last but not least, northern light#1, more stable then new strains of the NL variety, good to grow everywhere a plant could grow and a couch-nailer too.
all those strains are sativa-indica mixes but heavy on the indica gens, so the don't get to tall, grow compact and bushy and are still potent if only grow under CFLs, which i still wouldn recommend to do
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