I feel like i don’t deserve peoples love and affection

I will keep this short but in summary, every single time before my period starts i get so depressed and i hate feeling this way every month and idk how to stop feeling this way i hate myself even more that i am feeling this way, even the little things set me off and i overthink way too much about things, and my self talk is so low

Does anyone know how to stop feeling this way? Ik there is no cure for PMDD but I HATE FEELING THIS WAY, i already do exercise and meditation but i still feel like i am a failure to everyone around me, note that i cant get med to help me because i am still a child and i cant ask my parents for help