And remember that in all the circumstances in the Bible where people were giving their tithes, they were not doing so because of their greed or expecting God to only bless them. They were doing so out of love and respect to God, as to further His Kingdom on earth - so to speak.
There are a lot of teaching out there on the subject of tithing -just always be sure that the teaching aligns with Biblical teaching. The Bible should always be our #1 resource as it is God's Word.