1 Timothy 3 and Titus 1 spell it out. Above reproach, faithful in marriage, self-controlled, able to teach, not a drunk, not quick-tempered, not in it for the money, running his own household well. This one jumped out at me: “not a recent convert, or he may become conceited.” Leading people spiritually is heavy and it crushes folks who haven’t had years to build roots for it.
What you’re doing online is real ministry. But pastoring takes a track record, and only time gives you that.
I’d go talk to the pastor of a church you sit in on Sundays, ask them to mentor you and let them watch you serve in boring ways. The people encouraging you are probably seeing something true (see this).