Cannabis Troubleshooting

hey im a n00b so please bear with me =) ok i planted a bout 12 seeds (outside) a few months a go, and since then the weather has been shit and there has basicly been no sunny days and i think my plants are feeling it most have died except bout 3. but those 3 now are starting to die on the ends of the leaves wot shood i do leave them outside in the rain, or put in my bedroom in a cubord with a light.? - they are a few inches tall with only two leaves - they have mixture of sheep/cow/etc manure on them please can anyone help that would be apreciated please dont take the piss, cause i dont know anything cause i know i dont =/ thanks!