Since you mentioned being a newbie baker… it will take time to get used to your particular oven. Some run a bit higher temp-wise, some run a bit cooler.
For example, in my current oven, I know that most of the time, if a baking recipe has a range for baking time, I will most likely be ok with whatever time is right in the middle of that range.
So keep practicing and keep an eye on your baked goods when they are cooking.