You won't find friends if you hide yourself away. Contact Mind, see if they have any groups you can attend. Everyone is in the same boat as you so it might be easier knowing people there understand. Look into CBT, it can help change your thinking and enable you to deal with things easier. Also, have a look on fb to see if there are any depression support groups in your local area. A guy near me started one and now they've started having meet ups which are easier as we can all support each other.