What should the questioner do about her feeling that her ritual purity is being invalidated (by the release of air) repeatedly during ablution and before the opening takbir, and sometimes during prayer, which has led her to abandon prayer for seven months?

A Muslim is not permitted to abandon prayer as long as they are of sound mind. The questioner must repent to Allah and make up the prayers she missed. If the event (incontinence) is continuous, she must perform ablution for each prayer after its time has begun, and whatever is emitted after ablution will not harm her prayer. If there is a time when the emission of gas stops, she should delay the prayer until that time, as long as the prayer's time has not expired. If she fears its emission, she should perform ablution and immediately proceed to prayer. One must beware of obsessive whispering (waswasah).