Mixed milk for baby

Hello mga moMSh! Ask ko lng po sana anu po ma suggest ninyo ksi mixed po s lo now. My times po ksi na ok xa sa direct latch, my times din po na prang nakukulangan xa sa milk kya prang sinasapak ako at umiiyak thats why I decided na e formula xa . Tama ba yun? Ksi feeling ko po kulang ang milk ko for His demand pa help po mga moMshie! I really wanted to purely breastfeed my baby He is 22 days old now??