You have a lot to learn if you are looking to leaves to get high. But I've been there.
My very-very first harvest story, in short.
Had some plants growing and a party was coming up. So, I went and cut my plants, dried what I had, bagged some, rolled some, went to the party. I was the only one who touched my crop and I hated the two hits that were ever smoked from those plants. All I harvested were leaves. I had no idea what a marijuana flower looked like or what was getting me high. All I had ever seen were baggies of brown pot. Pfft, how was I to know?