My chemistry tutorial is an electronic document (38 pages in MS Word). It focuses on key chemistry topics: Oxides, Bases, Acids, Salts, Equivalent proportions, Acid Base reactions, Weight and Volume problems, Equilibrium, Le Chatelier's Principle, Freezing and Boiling points, Balance Redox Reactions (30 examples with explanations), Stoichiometry (30 problems with answers and solutions).
I believe that the difficulty of understanding of chemistry has psychological nature. Even though my book does not cover the whole chemistry, your success in understanding given topics will make you confident and will inspire you for further learning