Hi,
From the advice I've read in forums, and from my personal experience, I think this has happened to almost all of us when we started.
In my case, I've been doing this for a year, and I'm already selling modules that I bought at the beginning because I barely use them.
And it's funny, because before I started assembling my rack, I read forums, and I saw advice from veteran people who recommended doing the exact opposite of what I ended up doing.
I think it's not about more or less modules, but about finding the module that gives you what you're looking for, for example, I started having 6 LFO's in my system divided into 3 modules, and in the end, I bought a NE Clep Diaz that it has replaced 4 of those LFO's. A module replaces 2 modules, and also offers, from my point of view, functionalities that are just what I was looking for.
---Ferran.