What is the solution for dealing with new obsessive thoughts, sleeping through prayers, and abundant discharges that necessitate ablution for every prayer? And is it possible to start a new page without re-performing the missed prayers, which the questioner feels are invalid?

Ignoring whispers does not mean being lenient with acts of worship and prayer; rather, one must disregard them and maintain prayer at its appointed time. Reverence (khushu') in prayer is desirable, not a condition for its validity, and one should strive to attain it. Do not repeat prayers unless you are absolutely certain of their invalidity. If you suffer from incontinence of discharge, perform ablution for each prayer after its time has begun and pray as much as you wish with that ablution until the time expires.