All of ur problems are under one name that is depression . If u know the cause of ur depression then find the solve for it. If u dont know the causes then u have to deal according  to ur symptoms.U have to change ur behaviour  and mentality towards such problems. Consult a psychologist online or offline to know how to deal with such problems and learn how to handle it.

I understand your situation. You seem to be suffering from depressive symptoms including memory / sexual problems. Information regarding your sleep, hunger and energy levels would also be more helpful to decide on the severity of your condition. However it is easily manageable with appropriate treatment. Some counselling sessions along with medical help might be useful for you. I would also be more than happy to help you with that if you are looking for online assistance. Discussions will be held confidential. You can directly consult with me through Practo as needed. Online chat consultation is also available.