answer:Let them run their course, really. The easiest way to get over irrational insecurities and intrusive thoughts is to face them head on. Trying to stop thinking about them usually only makes it worse. Think them out. Write it down, if that helps. Frankly, I find writing this stuff down to be exceptionally helpful, for me. Play it out in your head to the absolute worst case scenario, the most irrational, dramatic outcomes that you can possibly think of as a result of what might happen if your fear comes true. Then decide which parts of it are within your control, and figure out and implement whatever you might need to do to change those things to make yourself feel more secure. Then figure out what things you have no control over, and let them go. Recognize that some things are out of your control and worrying about them will not change the outcome. Then sit back and really look at what you’ve discovered while picking things apart, and you might have just enough clarity to let it go.