To OP: age and mental health indeed influence your answers tremendously. Your answers if accompanied by the background stories of what have made you who you are today, and how you were before all this might help. That is only if you're willing to share that much.
That is one dead wrong stereotype of INFPs. I know some somewhat "unhealthy" (hurt/suffer from depression/take medication) and, still, there's one thing nobody can take away from us - independence. We are extremely independent in the way we think and how we choose to deal with something. We work great alone but know how to support others in a team. We don't ask for help or advice, and we strive for physical independence too (move out early as a youngster/crave traveling).
We don't walk around as if we're not confident either. In fact, we're very very good at acting like we are.
If one is INFP e4, confidence is something we can put on like a costume because that's what it takes to be a part of all this, but of course we're constantly aware of our defects. For INFPs, having money, looking beautiful, having cool friends, living in a nice house, etc. do NOT necessarily bring us the "confidence" deep down inside, but definitely the social standard confidence on the outside. For most, being accepted by your society gives you confidence. For us, only until we can fully accept ourselves that we can say we're happy with ourselves.
But INFP e4 hate alpha type, confident, ego-stroking hungry folks anyway