I think I need to take a break from ttc

I've been charting every mth taking vitamins baby danced every day I have a six year old why have I not become preg I know u girls can't tell me what am I doing rong tested this morning nothing but tested on 8 dpo had faint line and days going up to 11 dpo this happens every mth soo fed up sorry this is soo long just need to vent 😖