Welcome.

A few words of advice. You, or anyone else will benefit most from being a commentator on somebody else's blog by engaging in a conversation like you would normally do. Read the post you comment on. Make comments that show that you care and are genuinely interested. Become a valuable contributor. It is best done if you find someone who is into the same things as you are.

While most people have nothing against auto-upvoting your own posts, many people don't like people upvoting their own comments. If you have little Steem Power, it will do very little good anyway. Your comments will gain upvotes if others find them interesting. Some people have a policy of never upvoting comments the commenter herself has upvoted. @gamer00, for example, has stated that he will never upvote self-upvoted comments.