Though I still consider my domain knowledge equivalent to a newbie, now I have a small portfolio of around 110 domains which doesn't make me feel bad. Some are good, some average, some below average. But the majority of them are saleable but when no one knows.
As a complete newbie, I wasted around $200 on hand reg. on my 2nd day of domaining. But luckily somehow I recovered that amount from this lot. I was surprised when I made a sale of .exchange extension. This was the 3rd name I registered & returned 50% of the amount I spent on the whole lot. Then I sold those names at wholesale price & reinvested in better names after reading this forum for the next 4-5 months. Repeated this again & again. All these 110+ are acquired from domains income only. No fresh capital. Now payment for one small retail sale of $200 is pending, expected to get credited today. Will get more names.
But still, a lot to learn!
Few points -
*Spend at least 3months learning on this forum before investing in your first domain
* stay away from hand reg for 1st year.
* Read & make notes for future reference.
*When you start hand registering names, don't register it immediately. Write the list & look at it at least 4-5 times within 2 or 3 days. If you still feel them worthy, go for it.