Right now: leave the environment where the substance lives. Go somewhere with people — a meeting, a friend's couch, a coffee shop. Call your sponsor or the SAMHSA helpline before you do anything else.
Scripture
“Therefore, if anyone is in Christ, the new creation has come: The old has gone, the new is here!”
2 Corinthians 5:17
If you need more support
SAMHSA National Helpline — 1-800-662-4357
Free, confidential, 24/7 treatment referral and information in English and Spanish. They will help you find local detox, rehab, and support meetings.