I'm not a councillor nor a psychiatrist but I can only say that keeping the mind busy is important. Something I've noticed is you say it's not easy your mind has stopped talking to you etc. But your inner voice is there just there are some obstacles in your mind. Try and keep telling yourself you can cope and you will try to listen to yourself. And it's great helping others as this can be rewarding but it's important to also prioritise yourself. I battle every day with negative feelings and I just keep trying to get through the hour as 24hrs can seem rather long when your down in the dumps. Happiness is a temporary feeling it can't be more frequent if you choose to be happy. It don't have to be a battle happiness is a choice at the end of the day. Have you spoke to a doctor about the way you are feeling?