Steem is not an easy platform for newcomers, that's for sure. We, as a community, are making our efforts to improve on-boarding process but there's still a lot things to do.
You need to learn a lot before you will be able to use the platform and it's full potential but I think it's worth it.
As for voting for witnesses. No, you are not voting for me as a witness yet. You can do that by going to: https://steemit.com/~witnesses page.
Currently you are voting for @good-karma.
You can chose up to 30 witnesses if you like, but first I would encourage you to learn more about the platform and about witnesses to make a conscious votes.
Good luck.