This is a difficult one. You may want to do that old thing where you list the pros and cons. I think it is normal to have the emotional rollacoaster. One day your positive and the next your unsure. I know things your not sure about could get amplified when your here. For us here weve started making our lives here and are generally positive, but this is your life. I personally am so happy now. Our list of negatives for the UK was massive and the pros were mainly just family. Good luck either way with what you decide.