Worry about the thing but do it anyway. What if I don't get the job? Interview anyway. What if they don't feel the same way? Tell them anyway. What if it doesn't work out? Do it anyway. What if this is the wrong decision? Make it anyway. There's no guarantee in this life that things will always go how you hope. There is a guarantee though that they never will if you never try. Take the risk and see what happens, if it doesn't work out, you'll be absolutely fine but if it does it might just be the best thing you've ever done.