Welcome to Hive. You may want to do a post saying something about yourself and tag it #introduceyourself. Some people look for those. It's up to you how much you give away. Find some communities and people that are interesting to you. Have fun and a !BEER.
BTW Self-voting is discouraged, but yours is not worth much for now anyway.
Self-voting is discouraged by who? I say that it might not be wise to self-vote because of a limitation of voting power. I see it like a betting game where you can probably get more for your vote if you vote on a post before others do. I have been voting for my own posts. I generally don't spend a lot of time trying to find good posts to post for.
It's a personal choice, but some people think it's against the spirit of Hive where others should decide what your content is worth. Some take it to extremes by upvoting all their own comments, but they tend to get found out. You earn by curating stuff by others anyway. I stopped self-voting ages ago as I decided it was not worth what extra I might make.