I invite positivity into my life.

An invitation is a strange thing to issue, because it settles nothing. You can lay the table and still not know who arrives.

What you can do is stop making the house hard to enter — answer the friend who keeps trying, leave the porch light on, say yes to the walk you would normally decline. None of that requires you to feel optimistic first. Good things are not attracted by mood. They are attracted by doors left slightly open.