Term 1 reflection

I did a reflection for term 1 and I realised that I have a significant weakness in chemistry.  I am unable to memorise formulas for certain alkalis or acid such as hydrochloric acid. It took me 2 weeks to finally grasp hold of such a simple equation to my fellow classmates. I would say that my weakness in chemistry is due to my poor memory and when I tense up, it gets even worse. I start to forget everything I studied and do badly for tests. I find the need to memorise part of the periodic table very hard so thus, I feel that I should revise more on chemistry