alone

my boyfriend recently told me all my problems have made him lose himself. he said how could he help me when he couldn’t take care of himself. i totally understand where he’s coming from and i’m not upset with him at all but now i’m so scared to tell him or anyone my problems. i always had a hard time opening up to people and telling people my problems and i recently felt comfortable enough to tell him and my best friend about how i feel. now i feel like i can’t tell anyone anything because i’ll bring them down with me. what do i do?