I don't think it's that easy to create a subreddit @afrielect, let me share with you the two basic rules:
1) Your account should be at least 30 days old.
2) Your account should have a decent positive karma.
You can check all the other rules here. Plenty of people randomly create several subreddits for promotion these days, so Reddit is kinda strict with this. Let me know if you have any other queries mate.