If your intuition guides you to use Anxiety Free, do use it.

New History Generator, some suggestions you can bounce from, 'that it's okay, I'm okay even if I am alone" or "I can take care of myself when I'm alone, I can handle being alone. I feel at ease when I am alone".

Your statement is on the right track, drop the word wish though. It implies it's something that you might not have because ... well wishes don't always come true do they?

How about changing it to I intend to feel at peaceful and ease when I am alone.

Alex