this site and a flute beginner.. this is my first message

meeting you all! my question is about breathing when playing a legato passage. I
play a 6/8 line, that repeats itself 4 times like a loop, I only use my tongue
for the very first ntoe of the piece, but it''s hard for me to hit it the 4th
time and sometimes even the 3rd.. if I play it faster it becomes easier but I
know it''s not the way of practicing. I know you should breath through your
stomach to provide long tones, but are there more ways to improve breathing in
legato playing?