I feel so guilty now. Today is the first time I let my lo tried fm. She have been on bm since birth. She's 1 years old now.. The feeling in me, sucks.. ?

You are doing a good job in exclusive breastfeeding already! Although I am extended breastfeeding myself, I can't even exclusive breastfeed as my supply is not overwhelming enough and I have to use 1 tin of FM per month. I am not sure what makes you got pressurize to feed FM, but if LO shows no sign of stopping feeding on BM, you dont have to introduce FM too.