I have lot of anxieties about impurity, and its make me hate about impurity concept In Islam, am I kufr because that? I read that if someone hate the ruiling of Allah, he is kufr, so How to stop hate it and start repent? It's hard to stop hate it because it's stressfull,Do I need Recite Sahadah again?I try to repent but I fear that my repent it's fake, I fear that In my heart I still hate it, what should I do?

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.

Disliking some religious rulings and perceiving them as burdens do not constitute an act of Kufr (disbelief). You are still within the fold of Islam, all praise be to Allah, and you do not need to renew your Islam nor profess the Two Testimonies of Faith anew. Allah, The Exalted, Says, addressing the believers (what means): {Fighting has been enjoined upon you while it is hateful to you.} [Quran 2:216] In the verse, Allah, The Exalted, affirmed their faith despite their innate hatred for some Sharee‘ah provisions.

However, you should bear in mind that the Sharee‘ah provisions pertaining to ritual impurities are great and mirror the keenness on cleanliness and purification from ritual impurities, and do not involve any hardship or inconvenience; all praise be to Allah. A person may overburden himself because of his indulgence in considering satanic whisperings.

Therefore, you should disregard these satanic whisperings and pay them no attention, for being carried away with them incurs grave evils.

Whenever you doubt that something has become ritually impure, you should act on the basic principle, which is ritual purity, and act accordingly until you attain absolute certainty that it became ritually impure to the extent that you can swear to it.

Allah knows best.