i am making this bug report because of the new minecraft.net update that made me so unhappy :( ill tell you why

i am super sad that this new minecraft.net update is here i would like it to change the way it was so i wanted to change my skin i chose the skin i wanted suddenly i found out that minecraft.net has updated i was surpised and confussed of how will i change my skin i asked my friend she said near the help button theres a log in button i looked but she was wrong there's nothing there i went to my friends house on her screen the log in button was THERE but on my screen NOPE just not there i tried as hard as possible to find it on the search bar i wrote minecraft.net log in in the morning it was STILL loading i don't know what to do to change my skin i need help