Geometry and Algebra

HI, Admins, I haven't started my geometry preparation yet, please suggest me at most 2 or 3 topics from geometry I should focus for the sake of chance attempts, suggest according to the trends of geometry.
And Algebra, the questions occurring in the past pyqs seems so random, I am comfortable in linear equations and inequality , quadratic equations too, but rarely i've seen them straightforward questions from this. Functions and Graph is bit difficult for me, and I missed out Logarithm. Please suggest me topic to strengthen my algebra to secured important topics.