I broke a promise with a condition

Salam Aleikum I am a revert Muslim since November 2016 but before I reverted although I used to believe in Allah (SWT) as one and only true God and in Prophet Muhammad (PBUH) as the last Messanger of Allah (SWT) I was not a practicing Muslim at all and during that time unfortunately I made a huge mistake which today I strongly regret, I am addicted to porn and masturbation and In June 2016 I promissed Allah (SWT) that I would quit watching porn And masturbation and if I would return back to my addiction then he could throw me in the hellfire on the day of judgement even if I worship him in this life and even though I repent to him. Unfortunately i only lasted 33 days and after that I returned to my addiction and and so unfortunately I broke that promise which I made to Allah (SWT), now I’m truly worried that Allah (SWT) might not forgive me for my foolishness and im worried that he might punish me on the day of judgement even though I became a Muslim and even though I seek his forgiveness, my question is that although I made a huge mistake by making that type of promise, do I have a chance to truly repent to Allah (SWT) knowing that I made that promise in 2016 and is there hope for me despite having made that promise in 2016 which I am truly sorry for now?