Re: Reassurance and your thoughts?
Go for it... after all you have to start somewhere... The advice on max. 10 Kts of wind is good... Honestly, your biggest problem will probably docking at the end of the day. Docking will be scarier than anything, especially with a crosswind. If you can make a buddy at the marina, maybe offer him/her an invite for a sail with you to orient you to navigating the local area. All the lines and ropes can be intimidating at first but its really pretty simple. You have a lot of control of the boat by manipulating the angle of the mainsail relative to the centerline of the boat. Get a bock with lots of pictures of the assorted sail controls. Have some fun and don't listen to any negativity.
Keep a log book and document any observations or problems, It will be fun to read later on when you are an expert mariner (I myself am not !)