See BTM article on Pentecostalism 2. You will find that you cannot choose Christ or salvation. Such is impossible, for all men and women are dead in their sins before God touches them and makes them spiritually alive. You did not know any better. See BTM Article on election.
Tongues are a proof of our salvation.
If you believe this, you are totally wrong. Nowhere in scripture do you find such a statement. Once you say it, you make tongues a condition and proof of salvation. Real tongues are hardly ever evidenced today. See BTM Article on Tongues.