HOW TO APPLY MAKEUP ON FACE!!!!!!!!!!!!!!!!!!!!?

i not entirely sure what products are good to use and what to use first and how to prevent pimples with product (powder coverup, foundation, primer) . Im buying makeup off of MAC makeup but im not sure what face product to layer first etc. Do i need a brush while doing it? Which product comes first? What do i layer ontop? What should i use so that i dont get pimples? How do i keep the product from fading away throughout the day? THANKYOU :):):):)