Hi Sweetiele,
You’re 100% right, tactical thinking is very important in matches and it can be hard when there are many areas to focus on at once.
A really good way to start improving your use of tactics and thinking about this area in games is to focus on a few of your strengths in your game and how to implement them effectively. Also during a match just keep things simple and concentrate on a couple of key tactics or points of a game plan that you want to follow and stick to them rather than getting caught up thinking about too many things which is very easy to do!
This will help you have a more clear mind and a better picture of what you want to achieve, in the long term you’ll be able to improve and focus on more areas as well as more complex tactics during games! 🙂