Welcome, Kitty.
As long as you relax and concentrate on having fun, you will enjoy playing your ukulele.
As far as string type, “everyone” has their own opinion. You first need to decide if you want a bright sound or a warm sound. From tbere, the options multiply. And the choice of strings makes a remarkable difference in how the ukulele sounds and plays. As Kenn says, it might be a good idea to have the instrument set up, to adjust the string height to what is comfortable for you.
Good luck, have fun and stay vaccinated —- UAS is highly contagious. ��