I'm a great cook so why do I always burn my cookies?!

I'm a great cook so why do I always burn my cookies?

I always follow the recipes but my cookies are always burnt and my cakes are dry. I've tried taking them out earlier but then they were uncooked in the center. AAAAhhhhhhh!!!!!

You can double stack the baking sheet, and I always use parchment paper on cakes and cookies it makes clean up and removal an absolute breeze and I take 25 degrees off of what ever temp the directions say because I simply have better results with both cakes and cookies that way. And the rule I pretty much follow is I they are usually done when I smell them. ( only works for the first batch though*) and I set the timer (yes I set a timer too) for about 3 to 5 minutes shy of what the directions specify, because you can always add time and can't turn it back......
I also make three layer cakes instead of two because the take less time and cook more evenly (with less of a hump) and cool for frosting faster and every one likes more frosting!

Try taking 25 degrees off you oven temp and using parchment paper to line the bottoms of you pans, and shaving 3 minutes off your timer (at least to check and see).
and if cakes are the problem still use parchment paper and less temp and time but thr splitting the batter in to three layers instead of two... (this means you really have to change your time to almost half what the recipie calls for just touch the tops til it pops back and remember if you smell it (from the other room) it is more than likey past done...
Good luck!