Do what you feel is right. I think that squares are a great way to learn to do magic. Discipline, focus, timings and responsibility. Then the energetic layer, seeing and experiencing, unfoldment etc. Sometimes it can prove too much to handle or pull by (only seems as so), yet that's the exact purpose, to make you outgrow your situations and self.
Focus on spiritual squares if the material ones are too far away from your estimation.
Actually, after I wrote my last post, I started the Venus square with the reduced mantras, the conjunction with the Moon in Taurus was too much interesting to not start it.
For now on the contrary I prefer to use material squares.
I remember two years ago I was using the moon square to strengthen my sixth chakra and one night something happened that I can't explain, I had accumulated too much energy and the only thing I can remember for sure is that I woke up with a severe headache and stopped the square.
At the moment I am mainly focusing on developing mental skills through void meditation and its variants, after about 30 minutes of void, I can feel my energy increase exponentially, and at the moment it is the meditation that makes me feel the strongest buzz. So if I have to spend extra minutes, I prefer to direct them toward this type of meditation