You probably did not need quite that much SP to be able to operate, but it now gives you a nice bit of voting power. Make use of it and you will earn something in curation rewards. Steem works best if you engage with people. The best thing to do is make it fun. Enjoy Steem Monsters. I have played it a fair bit, but am trying to cut down on that to get some time back. If you want some more cards to use then see this post