Bismillahir Rahmaanir Raheem
The above statements do not constitute kufr(disbelief) as they are not clear renouncement of faith. They may show some turbulence in one's conviction which need to be addressed.
If you are having these feelings, then you are in need of counselling and good company, not a fatwa. I recommend you visit the scholars(Ulama) of your locality.
In any case, the general principle is, as Imam Tahawi(May Allah be pleased with him) says in 'Article 79 in his monumental book 'AL-Aqeedah-AL-Tahawiyyah:
'وَلا يَخْرُجُ العَبْدُ مِنَ الإِيمانِ إِلاَّ بِجُحودِ ما أَدْخَلَهُ فيهِ"
Translation: A believer does not lose faith except by denying that which made him a believer
It does not seem to me that any of these statements reflect this.
You can download an English Commetary on AL-Aqeedah-AL-Tahawiyyah from the following link:http://attahawi.com/2011/10/27/new-english-commentary-of-aqidah-tahawiyyah/
And Allah knows best