Fake "born-again experiences" are a common problem primarily due to improper instruction given in many churches and emphasized in some popular Christian media.I cringe every time Joel Osteen, after asking his viewers to repeat a frankly simple-minded ten word prayer, then states "We believe you are now born-again."
Do not allow deliberately misguided clergy to incorrectly define the term "born-again" for you.Rather accept Jesus' two baptism definition of the term.
John 3:3-7 (New King James Version)
3 Jesus answered and said to him, “Most assuredly, I say to you, unless one is born again, he cannot see the kingdom of God.”
4 Nicodemus said to Him, “How can a man be born when he is old? Can he enter a second time into his mother’s womb and be born?”
5 Jesus answered, “Most assuredly, I say to you, unless one is born of water and the Holy Spirit, he cannot enter the kingdom of God. 6 That which is born of the flesh is flesh, and that which is born of the Spirit is spirit. 7 Do not marvel that I said to you, ‘You must be born again.’
When we receive the Holy Spirit "sometimes feeling God is not existing" no longer is a problem because God in the form of His Spirit walks with us on a daily basis.