Hi @Amy_B85 and welcome to the forum! Don’t be hard on yourself, and never use the word “fail”. Those 16 days still count, and you can learn from these events - what triggers to avoid, how to prepare ahead of time, etc. I “failed” twice, but it still means I have about 14 months when I didn’t drink, with a few stumbles in between.
The first few days and weeks can be very difficult, stay strong and get as much support/info as you can - This app/forum, reading/education, AA or other meetings, maybe an outpatient program, etc. Some useful links are found here: