Any body who speaks ill or condemn another person's religion or belief is unsure of his own belief and  religion as all religions preach tolerance. Know the tenets of your religion, concentrate on your religion's principles, live them in your life and people will praise and copy you accordingly. Leave the  Spiritual Judgement to GOD.

In response to your quest,  I am happy to inform you that ECK (Holy Spirit) is the Totality of All  Awareness.  Hence, you need to  believe in GOD & invite the  Holy spirit to come into your life to show, guide and lead you to the correct and  the straightest way to GOD. The Easy way is for you to bring the five deadly passions-ANGER,GREED, VANITY, LUST & ATTACHMENT- currently ruling your life under your control.
Mean while, while you are struggling with that, do a good deed every day without expecting even a" thank you" nor any reward/compensation, give 10% of all your income to the needy next to you without fanfare,sing /hum the Name of GOD every time; surrender your total life (challenges) to GOD; and show love to all people you come across everyday(at least beam a smile) Do this consistently for the next one month and you observe positive changes in your life. That is spiritual growth! Don't knock it, keep on doing it and pass it on to others like you. May the Blessings Be.