Is it permissible to remove the niqab if a woman feels unable to adhere to its rulings, knowing that wearing it was a hasty decision and she was not psychologically comfortable with it, and would Allah be displeased by that?

The preponderant view is that it is obligatory for a woman to cover her entire body, and she must wear the niqab and adhere to the Shar'i hijab. Covering the face is better for complete protection and perfect modesty, and there is no justification for uncovering it. A believing woman should hasten to perform acts of obedience, and she should not refrain from obeying Allah under the pretext of not possessing qualities suitable for obedience or fearing the loss of sincerity. These are whisperings from Satan to discourage her. A person must strive against their self and defy their desires, seeking Allah's pleasure.