Struggling with addiction and prayer

Assalamu alaikum. I've been battling a strong addiction to smoking weed for the past 10 years. There were moments when I kind of accepted it and tried to pray while still under the influence. But honestly, I felt no connection at all-my mind would just wander and I couldn't focus no matter how hard I tried. Other times, being high would make me overthink my past traumas and mistakes, spiraling into hopelessness and thinking, 'I've messed up too much. I'm too far gone. This is just my fate.' I'd drown in shame and guilt, give up on prayer entirely, and completely lose myself. But something clicked last night, and now I'm back on the path to recovery, alhamdulillah. My question is: how long after using weed should I wait before praying? I came across something online saying you shouldn't pray at all until you're fully sober and clear-headed, which for me could take like 30 days. But I also heard that you still have to pray even if you've consumed an intoxicant, though the prayer might not be accepted. I'm really confused and would appreciate any guidance. Jazakallah khair.