Sheikh I want to know how to be steadfast in deen. Somedays I pray regularly while other days I again fall in evil deeds .Is there any permanent solution.
Leaving prayer is one of the greatest signs of hypocrisy. You are in great danger.
You must cut all means that facilitate for you falling into sin. You must make a lot of Duaa to Allah to save you from such sins. You need to surround yourself with righteous practicing Muslims 24/7