Why can't I assure myself that everything is okay?

Sometimes being along can make you second guess yourself. Overthinking is a great cause to self esteem issues and anxiety. To be able to center yourself is important. If that seems like an impossible task I can help you realize nothing is too big of a challenge for you to take on. Sometimes it is harder to feel things in the moment than it is to understand it. Be strong and you can prevail. I have faith that you will find your way. Like I said no challenge is too big for a strong person like you to face.