Hi, Krissi and welcome to DF. It really can be overwhelming with all the different advice and ideas out there, but you've come to the right place
It's hard to make a good nutrition plan for another person because everyone's individual needs are very different, not to mention food preferences, etc.
Can you tell us in detail what and when you're eating now? This will give us a place to start, and we can suggest changes to your current plan. There are a lot of very knowledgeable people here who can help you.
For exercise, I would advise starting off with a 2 times a week full
body weight training regimen. You can find a very comprehensive list of exercises on exrx.net. Choose one from each muscle group and stick to the ones labeled compound. This gives you the most results.
You can start with 20 minutes of cardio on non-weight training days and work up the time and intensity as you get more experienced and in better shape.
I hope this helps!