Lack happiness & peace
"Sin will keep you from the Bible but the Bible will help keep you from sin."
You sound like a prodigal son but also it is possible you came to Christ looking for life enhancement instead of righteousness.
We are not promised a problem free, best life or happy life here in this temporary sin stained world. Our joy is in Christ and what is coming for eternity. We all face suffering and problems in this life, but it is only hope filled and able to walk through it when Jesus holds our hand as a believer.
We have peace with God if we are saved. We are no longer condemned but a pardoned sinner. That is fantastic news. And we live with a new song in our heart because of Christ.
God loves us. If he did the greater thing (brought salvation) he will do all (lesser things) he promised in Scripture.
Every testimony is a miracle. Everyone is a sinner. Our testimony is to glorify God (not the sins we lived in).
Our salvation (if born again) is secure not because we have feelings about it, but because God has the power to save us & to keep us eternally saved. When he saves then it is a forever done deal. 🙂
If it turns out you were not saved, but today get saved, you have something to add to your testimony. There are many false converts to embraced a false gospel, but from among them some do come to genuine saving faith.
Dive into the Word again. Get back to church, and grow in the faith. 🤗
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The only way to happiness is by holiness