Tithing has been a great blessing in my life. I didn't see it at first, but I kept getting the leading to follow my pastor and other spiritual leaders on this. That was many years ago. God will use the faithfulness, faith and proven stewardship that tithing entails to bring great blessing into your life. What you do on small scale is exactly what you will do with greater amounts.
Many believers disqualify themselves from God's best over this area. Tithing as a grudging obligation would be going back to the law. But tithing as worship and obedience is an act of faith and as such it pleases the Lord.
My wife and I were in poverty when we began to tithe. We had to have government assistance for awhile. But we began to tithe when we were poor. It didn't all change over night, but soon enough, our lives improved. Doors of opportunity opened for us and continued to open over the years.
Today my annual tithe is three times what my annual income was that first year. I give glory to God.
There aren't many who truly tithe these days, and there are many bitter Christians who can't sit still or remain civil when the subject comes up. What does this tell us about their heart?
If you know God is leading you in this, then look to the Word and the testimony of the many good pastors and teachers who can encourage you. Don't let the internet naysayers discourage you. God is faithful, and He is a rewarder of them who diligently seek Him.