We have talked to each other and I respect you. The problem is that “those” proofs are not at all “obvious” to me although I don’t struggle with basics.To misuse Pauli's famous quip: I fear that you are "not even" struggling.
You should be building a tabernacle of ideas. When presented with a new idea one needs to treat it like an enemy: shine a light on it and prod it with a stick. See if it makes sense in your present knowledge framework and ascertain where it fits. You may need to adjust parts of the scaffolding for your present construction to make room. If this is not a struggle your method is suspect. I feel you need a teacher and recommend that you seek one (or several) for this.