Hi, Escape.
It is hard to continue- or begin again- after lapsing from a lengthy streak. But make it clear to yourself: you did not 'lose' 50 days! They are forever etched in history as 50 days of success and sobriety. That helped you then, and it helps you now, if you let it. Build on it, don't let it be for nothing.
An example: If I lasped 2x in 100 days, yeah, that sux, but I encourage myself that in the last 100 days I only lapsed 2x! In that regard, binging is never the answer, but even if that's what what's been going on, you can regain each new day to try again, to get up, and keep swinging!
It must be difficult to stop 2 addictions at once, but the same answer applies to both, expect urges- when they come, observe them mindfully, nonjudgmentally, and breathe deep until the urges pass- rinse, and repeat. It takes some practice, but this beats trying to white-knuckle through the urges.
The tiredness and work schedule are challenges, but they also give you opportunities to try different habit-changes to hack into these addictions, and to mindfully navigate the urges.
Have a plan for laspes (yes, even for lapses)! How are you going to treat yourself? Anger's understandable, but compassion should win everytime. Plan to get up, no matter what, to keep trying, to never give up.
Don't see this as so black-and-white. You will struggle, you will likely fail again, but you're making progress! Who would've thought (from your original journal) that 50 days was possible? Same here. Before you know it, you'll do 100 days and beyond. Make each lengthier streak your next challenge if you lapse. Now, your goal is to beat 50 days! If that seems unattainable, try 10, add to it another 10, 5x until you surpass 50 days.
Try different things, always switch it up, avoid ruts- or routines. You got this thing, Escape! Make PMO your bitch!