No, you didn't give it enough time, but then again, no, no-pooing is not for everybody.
First of all, the first 2 weeks of CG are the hardest. Getting used to not using shampoo, and your hair balancing out. Your hair doesn't get the effect of no-pooing after a few days - IMO, it's not really an honest try unless you give it a couple of months.
It's also helpful to alternate water washes in between co-washing. Use a light, or clarifying conditioner as your washing conditioner - V05 Kiwi Lime, Clarifying, these will give you a cleaner feel. Use your regular conditioner only from the ears down, unless you're really really dry up top. Oh, and whether you co-wash, or water wash, remember to scrub, scrub scrub.
If the co-washing thing really grosses you out, there are product lines with alternatives that still work really well. Jessicurl has Hair Cleansing Cream
, which isn't really like a cream, but a very creamy, low lathering cleanser, and Deva has the low poo, and you could use one of these once a week or so.