Don't say that you are a failure. Success is measured on how many times we've stand up when we fall. Think positive. For hesi, I reviewed the hesi book and do random 100 Q's per day and read the rationales. If I have to come back and read the text book regarding a certain topic say, TPN , I do. I have Saunder's review book as well. Keep on going and keep a positive attitude. You are almost there. You are just one step away to nclex!