Welcome! Finally I'm not the new guy! 
I would really recommend you read through existing threads and use the search feature. There's a LOT of previous information, and something like UTI is pretty much covered. You'll probably answer a lot of your other questions by perusing through existing content.
To get you started on the right path... (i'm honestly still learnign all the twists and turns myself), the ideal UTI is anywhere from 1% to 9% and only one ONE card. So you have 3 cards lets say - you want to pay them all off zero-balance before the due date, except one. On this one card, you will utilize 1 to 9%.
Also, keep in mind that the uti game does NOT need to be played every month. IT's not a historical kind of thing that improves your score over time. It's a one-time snapshot of your utilization THAT moment. So usually, people will keep their UTI reasonable, but only lower it when they're about to apply for something - to boost their score.
Thats pretty good info to start with fron the above response. I would add that if you do decide to carry balances and run you utilization up, be careful not to do it for an extended period of time. It looks more risky to creditors, and can effect decisions made on increasing your credit lines which can help raise your scores and limit your utilization. Also, in your case with the secured card, if they see you managing it month to month without carrying high balances all of the time, it may quicken their decision to graduate you to a better card unsecured, with bigger limits.
