Assalamu alaikum ustadh. I wanted to pray fajr on time however, I started to doze off only after Salah time started, when someone tried waking me up, I kept saying in few mins etc... I ended up waking up only 12 mins before Salah and missed it. Am I sinful and does this invalidate all deeds

Ustadh AbdulAziz al-Haqqan
Why would u miss it if u still had 12 mins? Do u suffer from wiswas?