i too have had an ectopic (and lost the tube) and I can relate...give yourself time...it really does get better eventually, although you will always have that element of fear and anxiety as part of your journey...and I think you need to accept that and also do all you can to try and keep it at a minimum, things like yoga, or acupuncture etc can help...there is the risk of another ectopic etc, but also the chance of a natural healthy pregnancy. I have been pregnant since...sadly those pregnancies have not lasted, but one of them was a natural pregnancy, and with only one "dodgy" tube left, the doctors were surprised that even happened. But it does and can happen!
I wish you luck. I know what a stressful time it can be.