It is hard to survive in a place where no one knows you. The effect of acquaintances is often underestimated. Yet, they are still a form of contact.
When moving to another area, it is vital to meet people. Seek out groups with interests you share. They will not come to you, so you must go to them.
Be patient when you are making connections. Recklessness can wreck everything. Once the seed has been planted, care is required for friendships to grow.
Do not demand, nor should you depend. It is always best to leave your problems at the door. Only those who know you will offer to bear your burdens.
These things do not happen overnight. Time is required and common experience preferred. When a person becomes isolated, it is up to them to reconnect.