Sex drive

So i have been struggling with an extremely low sex drive, i find myself never wanting to have sex or do doing anything. Me and my boyfriend have tried fore play, toys, different positions but I still can't seem to boost my sex drive. I would just love to be im the mood for my boyfriend because i know its killing him from us not having sex but every couple weeks. Does anyone have any adviseor knowledge on how to get my sex drive back, or why im having this trouble. Please help.