Hey I have a question. I have been using tretinoin cream for the past 7 days and I have been using it wrong. I squeezed about multiple pea size amounts for each part of my face mistaking the term ONE PEA SIZE AMOUNT for my whole face. I have read the directions and now I understand. If I use less tomorrow and according to directions usin ONE PEA SIZE AMOUNT for my whole face will the cream still work? or my skin has built a tolerace from the large amount used? (P.S. I didn't notice much irritation when using a large amount but I want to use less according to the directions now.)