I'm a new brewer myself. My strategy is to work from the same recipe (obtained from my LHBS) but tweak a single element with each batch. For my first batch, I followed the recipe exactly. For my 2nd, I used a different yeast. For my next batch, I'm tweaking the hops and only using a single hop variety so that I know what I'm tasting. Then I will tweak my steeping grains. After that, I will venture a bit. I want to do a Chimay Grand Reserve clone
as you had mentioned. That stuff is sooooo delicious. I figure that once I've built up a big stockpile of brews, it won't be hard to leave a big beer in the back of my closet to age.
Just keep brewing. The process takes so long, I don't think you can brew too much.