lonliness and deptession

Friends you have noted sometimes you feel loneliness ridden yourself and you want separate yourself.When you sit in park you want loneliness and focus your thinking on natural sceieneries.You think your past and current passing moments overwhelming you.
How can you get rid from this depression,loneliness and time wastage.If you have lost job ,pass your this time in interviewing new ones getting,if you have a quarrel with some family member or boss then stand up from where you can excuse make plan from where you can talk to new contact go and meet him.Some times colloquial is favorable.Signs of depression