But, I find that too much of minimalism is paradoxically too much of a good thing.
This is true.
The best known preceptors of minimalism in my opinion, The Buddha, realised this with his own life. As a prince (as a matter of fact he was crown prince to Sakya dynasty in ancient India), he was used to a life of opulence and lavishness. This he renounced and then adopted the life of a travelling mendicant for some time and went and meditated in the forests of Uruvila with five other mendicants. But it was not long before he realised that this minimalist life was going nowhere. He then rejected this and went away. As he adopted and practiced a more practical, middle life, this is when his “Bodhi” (realisation) dawned on him, and then he preached the principle of middle way throughout his life.