"If you say yes, then even your soul will laugh at you" the answer is Yes but my friend how many people following Islam? There are Jews, christians and other religions and even Muslims are not perfect muslims. Is there anything to blame Islam id we can not follow it perfectly?
2) You second question suggests that yu have never been a muslim. yes He(PBUH) married Ayesha but the purpose of the marriage was political. And if you know he married first to a widoe woman and who was 15 years older than him. And he married nest when he was 52. It means he spent 27 years of his younf life with a woman 15 years older to him.