How can one get rid of the intrusive thoughts that lead to suicide, despite adhering to acts of worship and feeling happy on the path of adherence?

Man is the one who creates his own whisperings (waswas), and they are an echo of his thoughts or a reflection of his reality. Acknowledging helplessness in the face of them is part of the problem. The cure begins with realizing the ability to overcome them with resolve and determination, and by emulating those who persevered and overcame their trials. One should deafen his ears to the voice of the waswas so that it diminishes over days. Remember the severe warning for those who commit suicide, and the promise of Paradise for those who strive, for Paradise is closer to him than the strap of his sandal. The most beneficial cure is to occupy oneself with truth, for if you do not occupy your soul with truth, it will occupy you with falsehood. One can immerse oneself in avenues of goodness. It is also advisable to consult a psychiatrist, as many have benefited from pharmacological and psychological treatment.