Analyzing/designing positive feedback amplifier
"How would I calculate the values for the positive feedback capacitive divider network? Also, is there any universal way of analyzing transistor feedback circuits? I would really appreciate a step by step guide."

What is your intention for positive feedback? For normal amplification purposes we use negative feedback (dc and ac). There is one application only which uses positive signal feedback: Harmonic oscillators.

Regarding an "universal way" for analyzing feedback loops: At first, you must identify the feedback loop. There are some special methods to calculate/simulate the gain within this loop. This "loop gain LG" is used to prove/justify stability properties of the circuit. By the way, this "loop gain" LG also appears in the denominator D of the closed-loop gain function (D=1-LG).