frustrated

frustrated my stutter used to be pretty manageable and i made progress but it’s gotten so much worse after a battle with substances i had. i feel like my confidence is just plummeting between shame over both stuttering more again and feeling like its my fault. been holding up lines and getting ignored by friends and family a lot. my girlfriends have been really supportive and understanding but yeah. is it normal for a stutter to get worse because of substance abuse?