Deedle gave you good advise about the scalp issues. When you cowash, you have to use the pads of your fingers and "scrub" your scalp.
If you're using the commercial "moroccan oil" that's not pure argan oil--it's full of cones and you can't just cowash. So, that may be the cause of some of your frizz issues. When you buy products, you have to check the ingredients for cone, zane and conol.
Here's a good blog on starting CG: The College Curly: Laura Lee's All In One Guide to Going CG: Now Revised and Updated!
3a (Corkicelli), highlighted, fine, low porosity
modified CG, since April '07
CG since 3/11/08
HGs: Anything Sevi; Curly Kinks Satin Roots, Curlycue ReNew and Coil Jam; homemade FSG and okra gel; soap bars; UFD Curly Magic; Botanical Spirits Jellies, CJ Repair Me