How can I get a stronger mix ?

Hello everyone, I’ve been trying to grow my mixed voice over the months and sometimes I can go up scales up to a C5 with the sound connected but sometimes it flips to head voice on top. How can I make my mixed voice stronger and make it stay connected through all my range?
Comments
I recommend sharing a video of you so we can hear! Mixed voice comes from a strong chest voice mixing with a strong head voice. If you hear a noticeable flip then likely the head voice is weak, unsupported, and the chest was louder.