Welcome. I’m proud of you for obtaining 19 days of sobriety.
I am not a cannabis abuser, but i can givve you some advice non hthe less
I highly recommend checking in daily to keep focus in the checking daily to maintain focus thread.
I also recommend finding some activities to fill time like, running, cycling, working out, meditation/mindfulness, crafts, drawing, reading etc.
I also recommend reading on this forum a lot on this forum and asking questions if you have any.
I hope this helps
Good luck, you’ve got this.