Congrats on 4 months clean by the way. That's the hardest part by far.
I know what you mean about the intense cravings. I'm at about the 6 month mark after my (most recent) relapse and I've been feeling them too. I admit I've even been looking for new health clinics, plotting to get another assessment so I can get a new prescription. It's like you work so hard to talk yourself out of it, then spend a few minutes feeling positive and proud of yourself, only to have your thoughts turn towards it again. It really wears you down. I don't want to relapse again though. It's NOT worth it.
I can speak from experience though, this is normal for this part of your timeline. Just take it one day at a time and do the BARE MINIMUM to get by in the meantime. That's awesome you haven't been drinking as alcohol is something I can blame almost every relapse on, at least partially.
And yeah, it would be nice to have superpowers but that just not what the drug does for me anymore. I'd take it, do a couple hours of work, and then do exactly what you said -- slam an entire bottle in one night and be cracked out for a day and a half, left to pick up the pieces.
Have you ever been to a narcotics anonymous meeting? I went to my first one a few days ago. I plan to go back once my schedule permits, at least once or twice per week. I didn't share, just listened, which everyone was fine with. And even listening to others really helps get your head back in the right space. They have online ones over discord now too so you TRULY are anoymous. Fire me a DM if you'd like the link. Posting on here is great too.
Stay strong, friend, we love you!