I understood from a misguided sheik that only the forehead is enough for sujud after I found out he is misguided I still followed the opinion without knowing if this is really a saying and every sheik I know from the sunnah said otherwise but I did it because it was easier for me with waswas, wrong?

Ustadh AbdulAziz al-Haqqan

Don't repeat what has passed, just fix your coming salahs.